Not sure if its too late to post this here since the mod is old but how do you install this mod?
I have two folders - Triangle Trade - SDK Files which in the folder i have know idea how to install?
You really didn't need to start a new thread asking the same question in the main Col C&C forum.
To answer your question:
1. To install a mod, you copy the mod folder into your Program Files\2K Games\Firaxis Games\Sid Meier's Civilization IV Colonization\Mods directory.
This path will vary depending on whether you installed Colonization via Civ 4 Complete or Steam. Search for "Colonization.exe" on your computer.
If you've never installed a mod before, there will be no Mods folder in this directory. So create one. (Firaxis didn't bother, since there were no mods included with Colonization).
2. The mod folder, in this case, is "Triangle Trade". This is what you copy.
3. The SDK Files folder is irrelevant in your case. It contains the source files Dom Pedro II modified when he compiled Triangle Trade's DLL (a file called CvGameCoreDLL.dll). They are not required for the game to run.
Normally this folder is included
inside the mod directory and so normally you don't have to worry about it.
4. All this is irrelevant if you have the 1.01 patch for Colonization installed. Because this mod contains a new DLL, and because mods with new DLLs created before the patch will not run once you have installed the patch, if you have the patch installed, you cannot run this mod.