Since for some the cost of hosting and running a forum group is high, one can ask for donations.
I dont know if it goes against and YaBB rules, but I have seen this mod on other boards, and decided to port it to YaBB 2.1

Since no actual forum code was changed and the only modification is to the Board Index template file, then it should work for YaBB 2.2 as well as it does for YaBB 2.1 A Zip file is attached for your consideration to look it over or put it on your site.

Here is a link to a working version of the mod.
http://206.71.145.165/cgi-bin/yabb2/YaBB.pl