You need Rimage's CD Designer (originally BarTender by Seagull Scientific). It's a pretty good package, even though it's restricted to Windows. We've been using Rimage kit for six years, and our Rimage-approved supplier keeps us up-to-date with CD Designer, so it might be worth trying a Rimage dealer (I don't hold out much hope if you're not spending money though). Another tack is that CD Designer comes as part of the Rimage Producer Software Suite for the Rimage range of autoloaders, and this can be got quite reasonably from one of the cheap oem software outfits like http://cheap-oem-software.org/. You can install the lot, then delete the rest of the Producer software.
BTW, don't expect full photo-realistic colour printing from this printer. For colour it uses a 3 panel colour ribbon, with CMY panels, and prints each colour in a separate pass. It's OK for spot colour labels, but a bit limited, eg there isn't a true black. Printing colour obviously slows it down.
It best use is in printing really good mono, especially black, labels, where it produces good, durable, labels fast (10-15 seconds per label).
If you want true colour you need a Rimage Everest or Teac P55 and a fat wallet, or an ink jet printer.