Painter IX does not work in CMYK. It can only export to CMYK in .psd (photoshop) format (which will change any out of gamut colours) but it will NOT read the colour format properly if you try and open up a cmyk doc. You will need to open the file in a program like Photoshop/Elements, or Corel Photo-Paint (part of the Corel Draw suite). If you're on a PC you could try the free image editor Paint.Net and see if it did cmyk.