IP checker, Multple account checker?

[scheels]

Hello,

Im looking for a vbulletin mod that will send me a PM or something when someone has two accounts or has someone else logging into that account. The reason I ask is because im setting up a premium section where only a usergroup can see, I need to make sure that nobody else but that person that donated is able to see the stuff. So just something that tells me when 2 people logged into 1 account and it tells me when someone has created a second account.

I had that AE detector but it did not work after I updated to 7.3, by the way, I have 7.3.

thanks for the help.