Icewind dale

I sicerely hope someone can help I live in australia, and I cannot access the cheat for IWDale to enter the cheaters do prosper dialogue box it wont work I have an asia pacific copy obviously, does this cheat not work on this version,please please help!!!!
the reason I need to access the codes is that I have arrived in the area where you meet Belifet/poquelin and I cannot damage him enough for him to transport my gang, he sends endless elementals,bone skeletons,mushrooms,salamanders etc and although my team is fairly strong I only have limited resources and run out of options I cant get close enough to him to attack directly because there are too many monsters, I had no probs with any other part of the game except 2 crashes. I have checked the full walkthrough and it doesn't help.
Sooooooooo.......... HELPPPPPPPPPPPPP!!!!!

Make sure you've edited the icewind.ini file to say Cheats=1 under Game Options, and also make sure it's patched (the release version apparently doesn't have cheats). And make sure you're typing cheatersdoprosper and not cheaterdoprosper (cheats aren't case-sensitive BTW), and that there are no spelling errors. And it's ctrl+tab to access the console...