Looking for a Logmein clone. Looking for it to be web based, prefer MySQL backend for user database. It needs to work behind firewalls and nat. Web interface must be simple to use for end users. Needs to have full remote functionality including chat, file transfer, etc. It should use secure internet to connect other machine. Must utilize encryption and work on Windows 2000, 2003, XP, AND Vista. All source code must be [url removed, login to view] should support IE latest verson and Firefox latest version.