Possible Apache and ServiceDesk MSP, same server?

hi,

Im evaluating ServiceDEsk Plus MSP, i install in my dedicated server that already has Apache.

Actually it works if I put http://www.myaddress.com:8080

I try with with SSL https://www.myaddress.com and dont work, just when i put https://www.myaddress.com:80

Which ways do i have to make it work in one of this address configuraring SDPMSP or Apache? Its possible?
https://www.myaddress.com or without SSL with cname modification http://support.myaddress.com

Thanks