shayshaysster: Have got pro sticker, and pro is what is installed. IBM said that they could sell me recovery disk for $82.50 which would sort the issue out.
In that case, try the windows key changer here.
http://www.microsoft.com/genuine/selfhelp/pkuinstructions.aspx
Should sort it out without having to by a disk or reinstall (assuming that the install has not been hacked with to get it going).