[xwiki-users] Bulletin Board app

Hello all, I installed the Bulletin Board app but the text is messed up somehow so i get it like that WebHome bb_bb rss bb_currently 0 bb_categoriessize bb_deletethisbb bb_category↓ bb_topics↓ bb_lastmessageon↓ bb_inreplyto↓ bb_by↓ bb_actions↓ bb_addnewcategory How can I remove the bb_ from the header,..etc because its pretty annoying to have it like this. Which class should I edit or where is that located? Cheers, Hosam