We can get ya going no problem!
Go to my guide here:
http://androidforums.com/showthread.php?t=692347
There, you will find a link to the GB28 One Click file in the Library section in the second post. Click on that link. I assume you'll want the unrooted version of the Jellybean update? If so, just download the "Stock Unrooted NoData Restore" or the "Stock Unrooted System Restore".. the nodata preserves your data and settings and the system restore installs Jellybean fresh. You can try the nodata but I think you should backup your internal sdcard and do the system restore to get a nice clean install of the new Jellybean
Once you download the EXE file follow the instructions in the part of the guide that says "How to return phone to stock".. if you have any trouble or questions let me know