iTunes fails to launch; Mac Book Pro; Mac OS X 10.6.8;Tried everything so far; NOTHING WORKS. Help!! Desperate!

I'm on a Mac OS X 10.6.8 and all of a sudden one day my iTunes failed to launch. The problem has persisted for months now--I've tried reinstalling, updating all software, removing all music files (which I backed up), I tried Safe Launching it--NOTHING WORKS. Help!! I'm Desperate!

I was existing with my iPhone which is my main music player anyway--and I lost it in a cab yesterday! I need to sync everything (thanks to iCloud most of it is taken care of contacts and calendar wise) and I'm sort of losing hope that this issue can be resolved with the iTunes...

Anyone ever experience this?

Any help is so greatly appreciated!