Originally posted by scloopy
They should print a "Civilization for Dummies" for people like me
You've just given me an idea for a project...
Anyway, to answer your questions:
1. About the Diplomat: Did you get a pop-up screen asking you to choose which action you wanted it to perform? Did you pick the "Establish Embassy" option?
If yes, then check your Foreign Minister report (F3). Then check the civ that owned the city you established the embassy from. Out from their name, instead of "No Embassy", you should see a report of how much gold, how many units, etc. they have.
To check intelligence, you simply highlight the civ's name in the Foreign Minister's report and click "Check Intelligence." You will then be able to see the techs (technologies or advances) they have discovered and what they are researching right now. For an experienced player (and even for a relatively unexperienced one), the Intelligence panel can tell you a lot about a civ.
2. When a boat is active in a city, move a land unit into that city and put it to Sleep (S key, or click on the unit in the City Display and click the "Sleep/Board Next Ship" option). Then move the ship out of the city. The unit should be transporting the Sleeping land unit.
BTW, if the boat is a Trireme, make sure it ends its turn next to a land square. Otherwise you'll get a not-so-pleasant surprise sometimes...