The DSON importer should work the same in Poser 10 as in Poser 9.  But as you've found out, Poser and DSON don't always play nicely together. 

Many of us who have used Poser for years gave up on DAZ figures after Victoria 4. For me, it's not worth the headache, so I'm afraid I have no experience in exporting V6 as a CR2.  Maybe someone else will weigh in.