Look in the Hak folder, for any *.tlk files. Then make a tlk folder in the NWN folder, and move over that 1 file
This, or in other words,
In your Neverwinter Nights directory (commonly C:\NeverwinterNights\),
- Put all *.hak files in the \HAK directory
- Put all *.tlk files in the \tlk directory
- Put all *.tga files in the \Portraits directory
- Put all *.bmu files in the \Music directory
If you do not have the folders inside your NWN directory, create them.