Hi, I don't use Daz Studio but if you have a look at the forums over at DAZ3d, the consensus seems to be that (for Bryce to DAZ) you should export your Bryce 7 content as an OBJ and import that into DS. f you really want to use the DS bridge, then the advice from those forums is to use DS version 3 and not the latest version. For DAZ to Bryce, have a look at this

http://docs.daz3d.com/doku.php/artzone/pub/tutorials/bryce/bryce-import01

That is for DS2 but the method will probably not have changed much in DS3. I'm sorry that I can't be of any more help.