Ok apparently I'm a complete retard.
I updated my itunes the other day to 7.6, didn't update my iphone which is 1.1.2 jailbroken. I tried downgrading itunes to 7.4.2 and when I plug my iphone in it doesn't even show up in itunes but it starts charging, same thing happens when I try 7.5.

I'm stuck!!!
Would it just be better to just go back to 7.6 and just upgrade to 1.1.3 ?