The Drunken Lizard Pub

I have both games and the cd's and somehow I must have thought that buying the cd's,I need not worry about registration.
I had to replace my tower and reinstalled my Book Two,but it's asking for a reg number.Can someone bail me out on this and help me to contact them for help?I am almost positive ...

I am new to this and there might be a reason that I don't know about.I visit these great sections of the map and clean out the bad guys and then they never come back ,so the area is just a wasteland,with no reason to go there again.I would like to build exp fighting enemies but they are gone for ...