Try selecting Custom Scenario (or a very similar wording, don't recall offhand). Then uncheck Time Victory in the lower right hand list. Then click Play or whatever it is called below that.
I have never played this Scenario so I can't say if this applies but some scenarios have the victory and other choices locked, even in the Custom Scenario screen.
It's not locked so the proposed solution should work.
Otherwise, locate the file American Revolution.Civ4WorldBuilderSave in the folder Sid Meier's Civilization 4\PublicMaps. Right-click it to edit it with a Text editor. Get rid of the 8th line: Victory=VICTORY_TIME. Or at the 12th line, change the MaxTurns=100 to whatever suits you best.
I like the idea of fixing the scenario best so will fix it that way. The time victory as currently set is just so anticlimactic that it can't be what the designer intended other wise it would be open ended rather than restricted to 100 turns
I like the MaxTurns 100 it gives a target and challenge. Otherwise I would stall the colonials while out building them and crushing them.............Later.............much later!
But that Time victory has to go!
The 100 turn limit is pushing my game whereas My first thought was to build Barracks and use the superior promoted British regulars I could then produce there is simply not enough time to chance a slow growing strategy
Thanks so much for your help guys
Once I get over my current obsession with Mechwarrior Online (MWOMERCS.com) [big stompy robots fighting each other] and the great community at House Marik
I will inevitably gravitate back to CivIV and finish up this quite cleverly scripted scenario.
I am going to give it a go from all factions. The Spanish look really tempting
and the barely there french will be a tough challenge.
In fact the waiting time to drop into live combat in Community Warfare (MWO's group warfare division) might just give me time to get a another turn in.
Oh no two obsessions with great communities how will I sustain the pace!