Ok, I downloaded it from 4 different sites, used different mods each time and it still doesn't work. It works fine if I dont load any mods, but if I try to use a mod or go into logging mod it gives me the generic "Shit Happened" error message. It is version 0.9b.
Trying checking your Anti-Virus software, it sometimes sees it as a trojan virus. I had a problem like this, and it turns out I had used the wrong GW file. Make sure the one you're using is in the program files, and isn't your saved game builds and whatnot. :O
