CANT' REMOVE ITUNES! HELPPPP!?

I've tried it all. Somehow my iTunes went corrupt and it says to contact tech support, I've tried that and I have to e-mail them, and wait for a response. I tried un-installing bonjour, quicktime, and then iTunes, I tried redownloading without un-installing it, and it says old iTunes can't be removed, I've read blogs and blogs and tried it all! Someone please help me! How to I force it to un-install. I've even tried safe-mode uninstall.