Control panel

Project: Login controlpanel I've tested mpdolan, but it gives too much errors. So any free loginsystem will do. Loginsystem must have: - admin controlpanel to add groups or users. - user forgot password function billingsystem: [login to view URL] must be installed Adsystem: [login to view URL] must be installed Programmer will have complete access to controlpanel, so installing will not take too much time. What i need is the following: In loginsystem you have 2 groups: - billing - advertising If billing is choosed then user must also created in icdbill database IF/And advertising is choosen then also add user to openads database When user login he will see: - a advertising button if user in group advertising - a billing button if user is in group billing WHen clicking a button for example to billingsystem user must be direct login and not need to fill in username and pass again Hope its clear