You'll also want to head to Admin > Games > Games, and click [Servers], then you'll see the list of those two existing servers which you can change.

For a more robust expanation, see: http://www.dkpsystem.com/faqanswer.php?faqid=76

Thanks so much that was it.

Rock on!

Now that I was able to change everyone to the right realm, I noticed they are now not listed as in our guild. When I click on Characters and Accounts then on Characters. Under the guild pull down menu the only option I have is not list or no guild. It use to have age of aggression. I looked all over and am not sure how to fix that.

This is changed by going to Admin > Characters and Accounts > Rosters, then you can rename the guild roster accordingly.

Thank you again I looked at it over and over and didnt realize that was it.