Yes Tom, exactly. In cakewalk / sonar you simply go to the "options" menu, select "instruments", press the "define" button, and from the screen that follows, press "import" and point to where you stored the file on your computer.
The PA80 cakewalk ins definition file can be downloaded from Korg's PA80 website at
http://www.korgpa.com . Go to the site, select "download", then select "bonusware" , hit the link that says ": agree", press #4 ( computer music templates ) and d/l the file from that screen. In addition to a Cakewalk instrument file, Korg posted the instrument patch file that I made for Jammer Pro software. I am almost finished making a patch file for "Band in A Box" as well and will submit it to the site when it is ready if anyone needs it.
AJ