It fixes a small bug. You can find it here :
http://www.gizmhail.net/xoops/modules/wiwimod/index.php?page=SiteMapWiwimodPlugin&back=Sitemap_patch
The patch for multiMenu has been upgraded to match the latest vesion (1.8) of this great module. Yet, please not that is still a beta version, that you should test again before using it. It is available on the patch page, here
With it, you should again be able to have secondary menu links from the same module under disctinc main entry link (please see the patch page for further details).
Use the forums if you need any help 
The news has been on the Xoops site for a moment now, but it was for a RC version of CBB so I didn't rush to say it here (besides I have some hardship to install those latest RC version on my sites, so I still haven't been able to test this version thoroughly).
So....as from the 3.04 version of CBB, the read/unread status can be kept in the databases instead of cookies !!
phppp has not really used my patch, but, as he nicely said himself (Thanks!), he inspired from it (in clear, I checked the code, and he done it fully again REALLY REALLY much better 
!!) :
Quote:
Changelog 3.04
May 8th, 2006
=============
(...)
2 Added reading records options: cookie, database (inspired by Ajout Gizmhail)
(...)
I'm glad to see that such an usefull features will be definitively in CBB : you guys out there won't have to wait for ages for my patches now
And again, congratulations to the newbb/cbb team for the great tool they(re providing to us !
CBB 3.02 has been released, and the corresponding read/unread patch is ready.
You can fin it here :
http://www.gizmhail.net/xoops/modules/wiwimod/index.php?page=CBB+ReadUnread+Patch&back=CBB_Patch
Thank you CrazyJoe to have remind me to do it
Everything is explained here
To sum it up:
- the code is cleaner
- a bug has been fixed, thanks to Tobias