I'm currently using 4.3 on iTouch 4th gen jailbroken with RedSnow Tethered. I was wondering if I can't just rejailbreak over a already jailbroken iPod (Tethered to Untethered) and will all my Cydia packages be gone and all my cracked apps, thanks.
It would be foolish to rejailbreak your iPod Touch if it's jailbroken. You will loose all your tweaks, jailbroken apps, and other things. If you really need help then go to these fourms