Well,
Frist you need a copy of Neverwinter Nights
Then you'll need to update all the patches and then log in via the game menu.
To play KTOD ll you'll need,
Neverwiter Nights with all three expansions.
The updated patch from bioware, and then you'll need to download and install
the newest version of CEP that is on the vault.
Once you have done that then you can log in and play untill your hearts content
for it is all free. Glad to see you here also. Any other questions please feel free to ask.
~SB