just discovered this extraordinary looking application !

i currently have a debian server running postfix and courier-imap and using mysql as user database ... are there any issues i'll encounter with this installation?  anything special i need to know before attempting the installation?  do i need to uninstall sqwebmail first? 

Any help would be greatly appreciated -- i'm foolish enough to attempt this install on a production server and can't afford to mess up anything :-)

thanks in advance for the help.

kenn