Firecage

Sorry for the noob question, but what do I exactly need to make mods for Baldurs Gate 2? Progam-wise anyway.

I have a huge problem when trying to install BGT. Note. Firstly. I customed installed both BG and ToTSC with everything selected. And did a full installation of both Shadows of Amn and ToB.

Now to the problem. When I start the setup of BGT, everything goes fine. I choose my language. I choose to read or not to read the walkthrough. I choose to install it and I choose what directory to install it in, then the problems starts. About a few seconds into the installation, I get a pop-up saying an error was detected and the setup crashed....I really do not know how to fix this.

I would appreciate some help please.

PS: Ohyah, I am running on Windows 7