From what I can see from this little bit of information he wants his admin forums in sub-forums...maybe meaning he wants his admin forums he already has and change them into sub-forums instead of being on like category -> forum to category -> forum -> sub-forum looks like I could be mistaken still.
IIRC If you have a parent forum, and any amount of sub forums in it, in order for the moderator to show up on the forum home page, they need to be set as a moderator of the parent forum. If you have them set as a moderator of only a subforum in the parent, they will not show on the forum home, but they will show up in forumdisplay.