Well in reseller, I went in List Users > Clicked the name of user but I can't seem to find a way to change the username... I'm very new to Direct Admin...
hmm well thanks for clearing that up... the real problem was I was upload a SQL back up and it said i wasnt the owner of the database or something what i remeber the old username was dlad and now its dladvance could this be the problem.. ? + the back up was created from cpanel (.gz format)
I suggest unpacking the tarball, and manually editing the MySQL dump file if necessary to change what you need to change.
I can't take the time to teach that from scratch on these forums, but you can probably google for the information you need, or perhaps someone else will help you.