TntMPD 2.1 r19 has been released for alpha (pre-beta) testing, and it has been tested to install and run pretty well on CrossOver 9.0. There are still some issues. Please test it out and make sure the list of "known issues" is complete:
http://www.tntware.com/tntmpd/groups/beta_testers/forum/t/3728.aspx
If you find any nice workarounds, please let me know.
Thanks,
Troy