Reply to Ableton "Local" vst folder?

ok guys so i have a problem .

I bought april's version of Computer Music Mag and thought i would try out a few VST's on the DVD that it came with. I'm running ableton live 7.018 on snow leopard. im used to just dragging and droping vst's into the vst folder in my library (/Library/Audio/Plugins/VST) however a few of these plugins on the DVD had to be installed like a program. Since installing these, ableton now craps out randomly, crashing all the time to the point were i cant even make a single 4/4 house kick drum pattern without it going bananas. i had no probs with it before installing these plugins (i cant believe of there names at the moment) but basically i wanted to go and remove them. so i went to the library folder and they arent there. i realise that in the browser window in ableton you have your plugins tab. in there are your AU's and VST's with VST's split into "Local" or "User". All my other plugins are in "User" while the installed ones are in "Local". now i have searched high and low to find where this "local" folder is? i want to uninstall them obviously so i can get on with making music again.

anybody understand any of this and if so got any suggestions? (its probably something simple lol )

cheers,
Andy