A verry popular question is "How to set realm list, so i can play on this server?". The anser is quite simple.
1. Go to your WoW install directory
2. Open realmlist.wtf with NotePad
3. Search line : set realmlist logon.worldofwarcraft.com
4. Modify line to look like that : set realmlist insanewow.selfip.net
5. Save and Close
Enjoy playing on this server