..or you can modify the existing modification to give you the information you need. The "A" graphic for the admins for instance is a <img src.... /> tag that is displayed there. All you have to do is alter the function that Josh's modification has to also contain the condition if usergroup= something then <a href="this is the new link"><img src="the new graphic"></a>
Something like that will make it work without too much tampering with the modifications. As for the stats page you will have to give a bit more information. Where is the stats information coming from? Is it a standard page where you pass the U_Number as a parameter and it shows the statistics or something else that is stored in the database?