Issssuesss
I haven't had problems like this for a long time after switching to the newest version of ZiPhone... Just try it - I'm sure you'll be fine.
*/EDIT/*
Sorry didn't realize your situation. Go ahead and hold your home/power buttons and don't let em go till you get to the iTunes logo. Plug it in and use the new version of ZiPhone, and if I were you, I'd stick with older firmwares to minimize the bugs after jailbreaking.
I haven't had problems like this for a long time after switching to the newest version of ZiPhone... Just try it - I'm sure you'll be fine.
*/EDIT/*
Sorry didn't realize your situation. Go ahead and hold your home/power buttons and don't let em go till you get to the iTunes logo. Plug it in and use the new version of ZiPhone, and if I were you, I'd stick with older firmwares to minimize the bugs after jailbreaking.