Bugfix ASP that uses MySQL, SQL and Access.

I have a custom chat website that has some bugs in Access/MySQL and MS-SQL when installed on each database format. Some of the problems deal with date format, onload, onclose, onclick, session variables/timeouts and in some cases, I have some browser windows nesting inside of others that also need to be corrected. In total there are around 30 asp files but most of them are ok. The chat module is part of my helpdesk website. Staff can login the helpdesk and get logged into the chat as a staff member. When users login the helpdesk they launch the chat client.