[RedTyger]

Untested, but should work. Search in the FORUMHOME template for:

<phrase 1="$numberregistered" 2="$numberguest">$vbphrase[x_members_and_y_guests]</phrase>

Replace it with:

<if condition="$numberregistered > '1'">
<phrase 1="$numberregistered" 2="$numberguest">$vbphrase[x_members_and_y_guests]</phrase>
<else />
<phrase 1="$numberregistered" 2="$numberguest">$vbphrase[x_member_and_y_guests]</phrase>
</if>

Now open the phrase in your AdminCP's Phrase Manager x_members_and_y_guests, copy the text there and create a new phrase called x_member_and_y_guests. Paste the text in and chage lezers to lezer.