no problem, thats why were here.

the CD-Key should come in a .zip file, if double clicking on it does not work, try right clicking and clicking open with WinRAR. If thats not there download 7-Zip(like WinRAR but better and Free) from here (click on the first download link to download it, then run the exe to install). Once that is installed, you may need to restart, but then right click on the .zip file with the CD key(the one from the email, you should be able to save it to your computer), then click 7-Zip and then extract here. You should now have a cd key file there(its the one without the .zip extension. You then want to copy this to your game folder, which is probably in C:\Program Files\GoG.com\Neverwinter Nights Diamond Edition . It will ask you if you are sure that you want to over right, select yes and your DONE!!!!!!!!!

Also, you can play offline without even having a CD-Key, so if your really anxious you can just do that(although its a bit late now I assume.

I wrote these assuming you use XP, they may change very slightly if you are not, in which case just post again with what you are using.

If you have any other questions just ask!

Oh, I forgot to add, you will need to reinstall the expansions to work with the new cd-key. To do this, grab the expansion re-installer from gog(it should be under the extras in NWN on your shelf under my account). Then extract this like you did with the CD-Key(Right Click->7-Zip->Extract here), then run what you extracted(should be an .exe file).