I've rooted my Bell P930 using this method http://xdaforums.com/showthread.php?t=2044645 ... i was failing using windows 7, but succeeded using WINDOWS XP.
EDIT: nevermind, i just read your above post, bleeeeh =) as for you crashes, i dont really know avatar, but FULL WIPE before flashing a ROM is recommended in my experience.
FULL WIPE:
Factory reset, wipe system, wipe dache, wipe dalvik.
Flash ROM, flash gapps, reboot .... if that doesnt work you might want to try another ROM, CM10.1.3 is pretty much to more stable of all, personnaly im using CM11, not having any issues other than my phone slows down when battery is running out, still in developement.
DO you have to use the unbrick guide to be able to flash a rom? Or could I root the p930 for bell with say superoneclick then just downloat TWRP from goo manager and flash away?? IM so confused by this phone!