This is a short guide on how to configure your server and edit things:
Config.xml
by going to server/resources/config.xml you can open it in notepad or notepad ++ and you can then edit:
MOTD
Game Name
The Port
A bunch of server stuff
Intersect.db
First download sqlite and then open up server/resources/Intersect.db and you can then edit all the server files by right clicking and choosing modify table and do things such as:
Change characters sprites,levels,names,items,exp and most other things
Quests
Skills
Maps
Events
And most other things in the game