Install TubeFixer for iOS
TubeFixer for iOS works on iOS 3.0 through 5.1.1 on the stock app and the App Store app. (also works if you install the classic stock app on iOS 6!)
Install with Cydia
Alternatively you can add the repo
cydia.invoxiplaygames.uk in Cydia and install TubeFixer for iOS from there.
View Package Page