Usergroups on profile page

Hi

I dont know if this qualifies a bug but here goes.

i used the answer from one prevoius post to add a feature i needed which is showing user groups in profile.

www.joomlapolis.com/forum/130-cb-123-general-discussion/139560-solved-show-users-qgroupq-on-profile-page

The problem is that i have some members belonging to two groups as a result of access priviliges in a forum.

How can i make so that only a specific usergroup shows under their profiles?