5
cbb4 is not recommended to be use in live site cause it still have bugs...check out this thread
https://xoops.org/modules/newbb/viewtopic.php?start=0&topic_id=66140&viewmode=flat&order=ASC&type=&mode=0
i think you need the tag for XOOPS 2.3
https://xoops.org/modules/news/article.php?storyid=4477
I Love Xoops