I did something like this on my site.
I copied and renamed the routine that displays the profile (get_profile), and call it with get_photo.
You want somthing like get_systemrig...
I use it to pull specific profile items into a non-ubb page via ssi.
http://www.skusaonline.com/cgi-bin/news/ultimatebb.cgi?ubb=get_photo&u=00000014 This displays in that region's homepage:
http://www.skusaonline.com/test/red_river/ I used the extra registration fields, but you could customize the profile further if you had to.
I'm thrashing to meet a deadline now, but I could probably write something up on the details in a week or so.
Regards,
Greg