OK... I will edit this post to give you a comprehensive list of everything that you did wrong. I will pull no punches.
I reccomend you find a game, and follow it, looking at ALL the saves. You have done EVERYTHING wrong... I don't know how you are still alive!!
I have screenies to help.
I give no apologies if you have to go crying away... you don't seem to listen to everyone, you start 100000 threads, all which could be solved by looking at the Civiliopedia, and you give 'tips' and 'hints' which actually are REALLY bad.
I don't claim to be an authority... but you should PROBABLY shut up, and go do some real research. Look at a few games, maybe a couple at Warlord difficulty, another at Noble, and a few at Monarch, so you can see tips you can use.
I am rarely rude. I am NORMALLY nice. But you seem to be border-line trolling, and contantly doing the same thing which annoys everyone, asking for help, and not listening. Giving tips, and not listening why they are wrong...
One last thing. You know you are doing something wrong when you have 6 resources in each city... in the Modern Era.
[Edit]Here it is, a comprehensive list. The only problem is... where to start? I will rank everything from 0-10. 0 meaning "There are no redeeming charactoristics, and you have done everything wrong", and 10 meaning "Well done, everything is perfect"
I apologise for my poor spelling. If anyone could give a link on how to fix Firefox 3's spell checker (which... isn't running!?) please tell me. I am tired of having to 'guess' spellings for words. In the meantime, the words are spelt, more or less, phonetically.
POWER
0/10
Lets start at the most IMPORTANT THING IN CIV: Power. In Civ IV, you need ESPIONAGE to see the power graph. You have no espionage. As a result, I cannot see the power graph. So, I retired (gave up), and looked at it. (Click on thumbnails to make them bigger)

See the dark blue line, arcing away to infinity? Thats where you want to be. That is NOT where you are. You are that pathetic little line at the bottom. If BUG would let me see your power, you would probably be less than 1/10th of Pacal.
You should NEVER, under ANY circumstances be the weakest person in the game, as long as you don't want to get your cities destroyed REALLY quickly. You DECLARED WAR ON ENGLAND, with no more than 1/5th of his power. That was stupid, dangerous, and one of the many things you did wrong.
Resources
4/10 (Not that you could do much to change this)
What about resources? That is another important thing. Here is your city:

And your land:
OK... thats not so bad. The land is low on resources, but with good trading, that shouldn't leave you with so few resources. Speaking of which... where are your surplus resources?
TRADING
0/10
Right... your trades are... unusual. To say the least. Line by line:
GPT7 for rice. Trading a resource for GPT is stupid, ESPECIALLY when you are running at 80% science already. It would be a million times better (no exagguration) for you to trade for some other resource.
5GPT for copper. Above. In addition: This is a STRATEGIC RESOURCE. NEVER give a strategic resource away for GPT, unless the resource is obsolete. The only 2 resources that do this is Copper (At the Reinessance), and Iron (At the Industrial era)
19 GPT for silver, silk. You do realise that with the silk, all your cities could grow by 1 population EACH? And 2 population, with a Market? NEVER trade away luxury resources, if you only have 1 of that type of resource. Only trade singular health resources away if you can get a luxury resource in exchange, and you don't mind having more farms.
*Cue large series of giving GPT to Inca*. WHY!? Oh god... WHY!? You are giving 10 GPT to Inca for no reason. In addition, the AI never asks for GPT, so this means you gave it of your own free will. If you are not going for a diplo win, there is no reason why you need to give resources away of your own free will if you cannot tech trade, and that civ is already pleased/friendly with you!
7GPT for Marble. 14 GPT for stone. Again, this is a strategic resource!! This allows you to build most wonders at double speed!! Keep it!
12GPT for Horse. WTH!? You gave your ONLY source of Horse, which is useful right up until the mid-Modern era, away?? Why? Mounted units are the strongest units by a pure 'strength' basis, anyway! In addition, with a Barracks and a stable, they pop out with 2 free promotions!! Horse is a critical resource, and you are selling it for small change... I wouldn't sell as horse for any less than 30 GPT, and only if I have more than 1 source, and I have all the luxury resources and health resources already!!
All in all... you have only traded resources for GPT. This is VERY bad... resources should be traded for resources. And don't trade strategic resources for luxury and health resources except in dire circumstances, although I am sure even you aren't stupid enough for that.
Technology
1/10
OK... this isn't quite as bad as the other topics. Your tech rate, however, is terrible. Your tech choices are... terrible. The only redeeming charactoristic is that you are in the same era as the other civs.
Firstly, what are you researching? Superconductors? WHY!? Sweet mother of all things holy, WHY ARE YOU RESEARCHING SUPERCONDUCTORS WHEN YOU CAN GET SO MANY CHEAPER, BETTER TECHS!?
You are missing critical techs... Organised Religion, Monarchy, Guilds, Banking, Rifling, Constitution, Democracy... the list goes on. And you are researching a tech that takes so long for... a Space ship part you can't build, and... Laboratories. I honestly wouldn't rank you as early-modern era. I would rank you as late MEDIEVAL/EARLY-REINACCANCE. Try not to beeline techs so insanely, when you have no tech trading on!!
Also, turn tech trading on. You are good with making civs happy with you, use it!! You like beelining (like me), so you should tech trade to fill in the gaps you haven't researched.
CIVICS
2/10
Now, remember him missing important techs? Odds on what civics he is running? I opted for Despotism/Barbarism/Tribalism/Decentralisation/Paganism. Thankfully, I was wrong.
Gratz on running Reperestentation. Thats one of the best Government civics out there.
Now... go research some techs, and get out of the default civics!! Seriously... by the medieval era, the ONLY civics that are in the default section should be the economic civics... and you should never go back!!
Slavery... you should be whipping!! Not too much, but whipping is a VERY effective form of production. Read up about whipping while in slavery.
City-Placement
4/10
Finally... something which I can congradulate you on. Relative to your other... abilities... you are very good at city placement. Just one question. Whats up with this city?
Its 1 tile away from the shore. Just a quick rule-of-thumb: Try to avoid being 1 tile from the coast. You cannot build lighthouses, and un-improved coast is little better than river-side, unimproved tundra.
You lose 2 marks for having so few workers. You ideally should have between n, and 1.5n workers in your empire, where n is the number of cities you have. I go closer (but never below) the n range, whereas some of the better players go towards the 1.5n range.
(PS. You built 12 workers. You have 4 workers. 4 Workers were killed(Lost). That leaves 4 workers that you DISBANDED (!?) Again, WTH were you thinking!?)
You are building... terribly. You are in war, and need UNITS for PROTECTION (not that grenadiers can hold up to Infantry and Tanks...) Why are you going for research? Stop researching Super-conductors, research some Medieval era techs, or there-about, and build hordes of siege units (thankfully, you can build cannons). These will hold up better against Infantry than Grenadiers. If you can, build Machine Guns (I think you can) instead. Stop with the Airships... everyone else has fighters, which eat Airships for breakfast, lunch, and tea. And whats up with the Manhatten Project? Seriously? You are last in the production, you lack the ability to build nukes anyway... and you want your RIVALS to get them instead? WHY!? The Manhatten Project gives nukes to EVERYBODY!
You lose 1 more point for poor building choices.
War
0/10
So... lets have a summary of your wars. You have only warred against Churchill. You are pinched in, weak, with few resources. The only way out is to attack England. You attack, luckily win a few decisive battles, capture a few cities, and...
Raze them?
WTH!?
Why did you raze no less than 7 cities... you needed MUCH more land, and more resources, and you chose to raze EVERY SINGLE CITY YOU CAPTURED.
You are aware that keeping cities keeps half the non-culture producing buildings? Right?
I have seen people over-expand, but NEVER seen anyone raze every city that they capture!! Cultural pressure isn't even a valid reason... you have No City Flipping From Culture turned on!!
Wonders
3/10
Not bad. You shouldn't wonder-spam when a non-Industrious leader. That said... you really struggled in that game. Your base score is 5/10. You got 2 wonders, the Hanging Gardens (arguably a poor choice... but in your situation, the +1 health is invaluable), and the Pyrimids (A great choice, and with you avoiding civic technologies like they have cooties (!?), that is the reason why you have more than 3 non-default Government Civics...
However, you lose 2 points for trading away your only stone and marble. That resource is all important!! And you traded it for small change too >.< (14 GPT, when it could go astronomically higher...)
Overall
1/10
This is the demographics screen. I don't understand most of it, but it has a general idea of where your civ is on the world scale:
GNP: This is (probably) the amount of GPT / Commerce you make. You have so few cottages, and so small cities, that you are almost nowhere compared to the other civs (ranked 8th out of 8 civs)
Manufactoring Goods: This is the amount of production you can pull out of your cities. Your cities are working almost solely on making specilists, which is horrible for your production. You are producing nearly half the production of your nearest rival!!
Crop Yield: This is the amount of food. Your low population means that the few food tiles you are working is barely impacting, compared to your rivals.
Soldiers: This is the most important line, and the one that you are lacking. This is the POWER rating of your civ. If it is low, you will be attacked soon... If it is high, then you are safe.
You have 712,000 soldiers. Your nearest rival (Weakest AI), has 1,604,000 soldiers... over TWICE your power rating. The strongest rival (Strongest AI) has no less than 4,646,000 soldiers!! That is... 6.5 times stronger than you. You stuffed up big time in your military. I honestly have no idea how you are still alive!!
Land area: You are losing land area... but you are still 3rd. Aggressive early expansion payed off. Unfortunatly, you should have captured most of CHina easily... instead of razing it to the ground...
Population: The size of your cities. This is insane... you have 5.5 million people. I have that many people in the late re-inessance era, in a BAD game >.<. Your nearest rival has nearly *3 times* as many people, and your strongest rival has over 10 times as many people!! For shame... The reason for this is simple... you have too many farms BTW... but you don't have anywhere near enough luxury resources / health resources.
Approval Rate: Your happyness. At 49%, it is the lowest of all the civs (again -.-) A lack of resources, the fact you STILL haven't researched Democracy and adopted Emancipation (which is giving you +3 to +5

in all cities), all add up to a very angry civilisation.
Life Expectancy: Your healthiness. At 53%, this isn't the worst in the world (7th out of 8). Thankfully. Unfortunatly, the sole reason this is, is because your cities are FAR too small. Your healthiness should be quite significantly lower than your happyness in the late-industrial era, with Coal / Oil and Factories in production cities.
Export-Imports: Your trading. You are giving tons of GPT from this, meaning that you are ranked 3rd. I have no idea what this means, however, whether it is good or bad...
Anyway, that's it. You stuffed up almost everywhere. Where possible, I have given explainations on how to fix it in later games. No-one could win a game like that. Its simply impossible.
Slavery + Hereditory Rule = Epic early game civics. Remember that.