MF-B & Jet Li's BoardPass V1.7 for YaBB 2.2.1 mod has been updated today.  This is a recommended update.  Here are the details from Jet Li's post on BoardMod:

Mod History:
Status BoardPass V1.7 (March 26th 2008 )  
- Fix by reorder Boards, that make other Boards empty description, and enter empty description boards after reordered boards was clone boards.
 
Note: After installing, Rebuild Recount Board Totals and Rebuild Message Index
 
Please make a Backup of these in Boards before too, if you edit your boards: forum.control, forum.master and forum.totals