injector not workin

cud any1 give me sum advice plz. just recently downloaded the crossfire pub hack from mpgh on to my bro comp. the thing is the injector doesn't seem to work and the is no menu hack up or anythin. ive used both mpgh injectors and the perx n neither has any affect. ive told him to run as admin and tht doesnt work either. it works perfectly on my laptop using the mpgh injector but not his ive done exactly the same things to his comp tht i did to myn. would him having xp pro have any affect as im on xp home?? he also has norton antivirus but i already stop is from deleting the file n dll, which i did to myn, without havin to switch of my antivirus. any advice would b gr8 thnx

Cf pub detected