Hi,
For MAC
Please install the Cups filter available at:
http://downloads.quark.com/Details.aspx?fid=117&
and then restart the computer.
Navigate to HDD//users//current user//Library//Preferences//Quark//QuarkXPress 7
and Rename the folder named QuarkXPress 7 to "old QuarkXPress 7" at the above location
I hope this helps!