That is Poser's standard phrase when it can't find the obj-file in the folder where the cr2 says it should be. I think the easiest way to do it, is to use the downloaded file from DAZ on the pc, but you don't install it the ordinary way. Instead you choose install to folder .... . Pick a suitable empty folder. Then you install the lot there, zip the whole directory structure, and move it to the mac. On the mac you unzip the file (Stuffit expander will do it) and let Maconverter do it's job. After that I move the stuff by hand, but I think Macinstaller will do it too.