I downloaded the file, unzipped it (both 1.5 and 2, single language and multilingual, i've tried all 4).
When I run the program, splash screen pops up, then I get an hourglass for a few seconds, and then nothing. gaim is a running process but it's not visible on my screen and doesn't do anything.
I have GTK 2.0 installed on the computer (I use easytag). I've tried uninstalling it and running with it not installed, this does nothing. Reinstalling it does nothing either.
Gaim has never been installed on the computer. I double checked, and there are no gaim settings in %appdata%
So, I have no idea why this doesn't run correctly.