Wirelessly posted (7290: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry7290/4.0.2 Profile/MIDP-2.0 Configuration/CLDC-1.1)
Speedy I don't think that A firmWare flash is all that needed , that would also cause the AdressBook to be deleted from the device , not to mention allot of other saved information.
Your best bet is to call RIM and explain the situation and describe to them the error numbers being displayed.
If that doesn't work find A ROM downloader and save all your blocks to your PC , do this about 3 or 4 times.
Depending on how much saved information is on your device it may take A while.