I know there are millions but im making this one for AC-web.org's repack AC Web Ultimate Repack 7.0
1) First double click the AC web ultimate repack and then click server
2) Click on MySql
3)Then when you see this click you HeidiSQL or what ever program your gonna use for this...
4)Then you should see this. Fill in the info there that you can find in your Logonserver.CONF
5)Then once you connect click on the tab called Logon
6)Then click accounts
7)Then scroll to your rite so you can change your "Flags" to 8 for Burning Crusade (Sry,I dont know non Burning Crusade) and in acct just put the number of your account doesent matter what you put kinda.. and Login make your username and in password make your password (Nah,RLYO.O!?!) then click the check mark
There is some more info above and you can make more accounts with the + sign dont forget to hit the check mark after you edit a account table.
More info I was really bored so I made this but I still hope it helps with account creating issues. (Who has account creating troubles!?) Enjoy!