I have a jailbroken iPhone and for some reason I can't sync with iTunes?

And I need help trying to figure out why it's not working

Get a new account, like a new email, then use that one instead of your old one you have been using.

What's the exact problem that you are facing? Jailbroken device works fine with iTunes. As a last option you can always restore your device in iTunes which means you can only have what apple approves for a device. You can also do semi-restore.