Re Poses not working in Carrara (or anything): I've already posted a something  in Daz Carara forums (Bratpiper there) re this under some heading about not using the DAZ installers. Basically I install EVERYTHING MANUALLY since I've a mish-mash of DS/Poser/Carrara tangled up., plus I reorganise everything so I can find it under sensible structures,

Anyhow the basis of your problem of files not working (usually get a message like "can't find the file", even though it definitely is there!) is in the duf file itself . Open the duf in a text editor (Notepad++ is great because you can batch edit whole groups of files in one go)  and look very near the top of the file for the files' address line. That address MUST be the same as the file itself. Note that for many files you purchase from DAZ this just is not true! I can only assume that Studio does not use this line - but Carara definately does. Edit that line and resave the duf file and it will work - I've had 100% success rate.

Note the duf's might be compessed, just  unzip with winzip or similar.

Hope this helps