This .rar file includes the following:
Cracked nwn.exe
Cracked nwnmain.exe
NWNEnglish1.66HotUUpdate

You will need all expansions to get the crack to work with this. I have not included cd-keys as they would be banned quite soon with the amount of traffic from The Pirate Bay.

1. Install all the game and expansions.
2. Copy over the nwn.exe and nwnmain.exe
3. Update using the file included

With this you should be able to create an account without the game complaining about serials.