I have had very good success with FUPPES.  It is freeware and works beautifully with both the DSM-520 and Playstation 3.  The D-Link software does not work with a Playstation 3 but FUPPES does, so if you have one, give it a try.  One important note it that FUPPES does not use a lot of processor overhead.  For anyone interested, if you need help with the config file.  Let me know and I will post one here. You will need to edit the PS3 Section and IP for the computer hosting the files, other than that, it should work for you fine.