As Lobo3433 stated, the last known version to support DSON is Poser 11.  The best trick to use DSON characters in P12 and P13 is to save them back to the Library as new CR2 figures thus creating new OBJ files in the process.  In this way, you break the DSON chain and be able to import a poseable Genesis figure.  You will probably need to keep track of where the OBJ files are stored for a successful import.