I was wondering if there were any programs that would allow me to change my school of magic for my nwn character. When i started i didnt know anything about it so now i cant cast time stop and i really want to change from conjuration to something else.

http://www.sorcerers.net/Games/NWN/index_editors.htm

The second and third programs may help with that.
Please correct me if this is incorrect.

At worst, you could just go to a created mini-module, make the character how you want and import him/her or some such back into the game. I think you can do that anyway.