Modification of ID ?

Good night. I open this post because for several months I have a question on how to change my id from server groups and I would like to know how I can do yas I want to have everything tidy. Seeking google I found that it is something in the database, but as I can access it? SS found a better specifying what I'm asking. Thank you very much =)

http://www.mediafire.com/view/myfiles/#8wv45dr4b50nf9g

Database editing is not supported, please do not just change the IDs! You can mess everything up with that, if you do not know exactly what you are doing.