Vista - user account question/problem

I think i did something wrong when creating the user groups..When I go to
user control panel there are the 3 kids and me...when I go further into
user/permission area, my one child appears as a separate user group
(kids/kids), wheras the other 2 and mine are in (mom/kids)....NOT sure if
this makes sense to anyone..I recently bought webwatcher for internet
security and because of this problem, it only sees her accout as (kids/kids),
not her (name/kids) like the other 2...any ideas, or was this post to hard to
follow...if so, sorry..