Bootaaay

Pardon my stupidity, but I'm not too sure what to enter into the Find field... I tried entering the rom name, the bad crc, the correct crc (as given by FBAX) and it comes up 'String not found'

Hi, i'm a complete novice at anything to do with hex, how exactly would I change the crc's of these files? I'm trying to run SVCPlus and the rom's SVC_P1 and SVC_M1 have bad 'crcs', I used a program called XvI32 to open the specific roms but am completly lost as to what to do and don't know where to begin Am I using the wrong program? Any help would be much appreciated