Well, its been a while since I last used bryce... but...
OBJ format is supported by most programs, so you could export your mesh as OBJ and import it in your other program.
Perhaps you would need to activate a plugin though, I know I needed to in maya 8.5, but dont recall doing it in 7...
In ICT there are two kinds of people : Technically challenged artists, and artistically challenged technicians.
I am, without a doubt, the latter.