edit: if you need to uninstall itunes just go here http://support.apple.com/kb/HT1224
@mackilroy: thanks for the tip, but couldnt you just help me without snide comments like that? seriously i dont understand why? anyway i never said "i wonder why itunes freezes with my jailbroken iphone 4" did i? no i didnt, i just explained my predicament using itunes 10, and then asked a question which had nothing to do with my jailbroken iphone 4 whatsoever, but only with how to downgrade to itunes 9.2.1. of course i understand why a jailbroken iphone 4 might not work properly with itunes. im not a completely idiot, im just a new mac user who wants to learn the ropes. however ive been using my jailbroken iphone 4 with itunes flawlessly until now, which is why i wanted to revert back to an older version of itunes, but needed help doing so.
anyway i successfully reverted to 9.2.1 no thanks to mackilroy or misterme. i got some help from people at work who didnt get all hot and bothered about jailbroken iphone 4's because, like me, they dont live in the usa and dont have the luxury of using "legitimate" hardware...
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anyone else whos having a similar problem, i did the following to revert to itunes 9.2.1:
1. delete itunes application from the applications folder (click and drag the icon to the garbage bin)
2. delete the file named "com.apple.iTunes.plist" which can be found by opening finder and navigating to user/library/preferences
3. delete the itunes folder which can be found by opening finder and navigating to user/music/
4. download and install itunes 9.2.1
a few notes: i couldnt find the files mentioned in steps 3 and 4 of the initial directions i posted a few posts above, but it didnt seem to be a problem. also be aware that i hadnt downloaded or imported any songs yet either, so there was basically nothing to erase except the program itself.
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@mackilroy and misterme, seriously this is last time i come here for help. i dont understand your sense of arrogance. trying to make me feel inferior because i use a jailbroken device... neither of you should bother replying youll just be wasting your time because im not going to use this website anymore.