I saw this uestion earlier in the search, with no answer. I have the same issue:

"Hi I am not sure if this is in the right place since there is three CB newbies forums but here goes....

I understand how to set up the user list but I want to show user thumbnails only to link to profiles however I don't want them in a list format (one per row) it makes for a long list. Instead is there a way to display them for example three per row?"

www.joomlapolis.com/component/option,com_joomlaboard/func,view/catid,27/id,59548/

Please help!