PHP coding - multi -user login

We need some help with a multi-user login work around. Our site runs on an out of the can web based subscription service - [login to view URL] This site streams medical education video content on a subscription basis. We sell subscriptions not only to individuals but also to institutions. When we sell to institutions we're wanting to allow multiple users to log in under the same account. The Visiongate software of course checks for multiple log ins and boots people out. It does it fairlly infrequently so most of the time its ok. I've checked for cron jobs (I have ssh access but its not a co-location scenario) and asked the help support if we can disable this feature - no luck. So what we'd like to do as a work around is import a set of users for each institution (this is already in place) and have some php code check to see if a user profile is in use, cycle through the listing of possible users until an unused one is found and then log the person in under that account. We would manually import the users and give them a user name ending in a number ( myCollege1, myCollege2 etc). This would also open up the doorway for us to sell sets of users to institutions. We have php admin and full access to the structure, I'm trying to find out where the login info is stored. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform This would be a straight php for MySQL 4.0.25-standard