If you have Corel Draw or Illustrator - you don't need anything else.
I have the exact same machine, I just make the design I want in Illustrator. Then weld the words together (so the machine doesn't cut through the connecting pieces). Then under the File menu (I think) just open the Cut Pro thingy (comes with the software & should show up automatically after install), it then automatically gets it ready to cut. You choose your settings and hit send. Corel Draw will allow the same process.
I think when I first got it I had to go in and change the measurement settings from millimeters to inches. My Illustrator uses inches to measure, but the software that comes with it has a default of millimeters - so they didn't transfer correctly.
Hope this helps!