php/mysql help

I need help fixing a bug i have on my site. I have a login/password protected site where users must login to get to their personal information.. however, some users are having a difficult time login into their accounts. Some cant get into it while i can get into them.....i have the [login to view URL] file for someone to check and see if ther eis an error in it or if someone out there knows a better full proof way to do this without having these login issues... ## 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). * * *This broadcast message was sent to all bidders on Monday Dec 19, 2005 12:52:00 PM: i need a team or person to do some php/mysql work on two sites....they both are online stores...one can use a free software like zencart/mambo but the other one must be fully coded...i need to know the prices and the time length to get something like this done...i need a team who dont have alot of work and can work on this hard for the next few days....only the best bids will be responded to...also u must show some example of your work again...thanks ## Platform php mysql all internet browsers