I'm not a techie for the forum, but can you access the User CP? That is where the option for joining the group.
Tammy, moderator of special needs, math, Volume 5
http://rarefied.weebly.com http://aut2bhomeincarolina.blogspot.com
http://www.harvestcommunityschool.org
http://rarefied.weebly.com http://aut2bhomeincarolina.blogspot.com
http://www.harvestcommunityschool.org