I used to help out running a site and we used dolphin software also. We could add a "guest book" and [url removed, login to view]'s, music player to our profiles. we did that by editing members info and adding code to the "Fav Music" field listed in the members profile info. after you install the code one could see them from inside there profiles.
From the admin panel i checked in the fields builder under (member) "profile view" and I can see them listed there and they are active.. . They are active but cannot be reviewed under a logged user's profile. It's a new install, 3 days old but it never worked. I hope you might have some ideas.