You'll need to either use the PMD script (if you have DS3) or a copy of poser to load morphs and save it back as a CR2. Nothing is really usable off the bat in DS without manually editing files, so you probably should see if you can get some type of refund. For things that say not tested in DS you should probably check out readme to see what type of files are included.

The vendor probably should have made pz2 files for the materials and a delta injection (without the pmd) and that would have made the product a lot more accessible to others. Then DS users could have simply adjusted the materials in the product.