first of all... to see the commands either go to (yourshardfolder) > PKG > commands or (yourshardfolder) > scripts > txtcmd.
as for creating an admin account, go to (yourshardfolder) > data > accounts.txt
open this up, and go to the account you want made an admin and add the line (if not already there)
CProp job_options a2:i0i0
CProp lastlogon i9684
CProp sell_options a9:i0i0i0i0i0i0i0i0i0
thats how i make mine atleast
theres a different way, if you have a command called .acctinfo or .accountinfo it can even be done in there