I followed this Tutorial How to: Install Rooted Foyo 2.2 via ROM Manager and I asked for help there but I know this Forum is a little more active so I hope I will get a response from here.
I followed the tutorial exactily and after downloading the 2.2 ROM from ClockworkMod and booting into recovery to install it I get this. (I checked the Wipe and backup current ROM boxes)
ClockworkMod Recovery v188.8.131.52
Finding update package...
Opening update packing...
Verifying update package...
E:failed to seek in /cache/update.zip (Invalid argument)
E:signature verification failed
I really hope I can get this working, I also tried manually putting the update.zip on my SD card and installing from there, I get the same message