you should be able to fix it... but you'll have to sbf...
how are you trying to get into bootloader mode?
this is pretty normal when going from a rom such as encounter to cm9(i'll elaborate a bit)
with encounter... it has the boot menu... and when switching from a rom with the boot menu... to a rom with out the boot menu... problems are common... and that's just what's going on here
to get into bootloader mode... hold power button + both volume keys + camera...
and as far as which file... sbf to 602/605... the only difference is 605 has a fix for the stock keyboard.. and that's it...
if you enjoy root... and flashing roms... like your doing... stay away from 621... it breaks root... and ability to flash to and earlier version...(there is a way to side step it... and get it rooted... but it's better to say on 605/602... that's where all the development is at....
Alright, I'll try that right now. I'll let you know how it goes
Finally got CM9 on my damn phone. Thanks for the help fella, I appreciate it!