Ok, it appears the only way to fix this is going to a LIKE query. You can edit scripts/online.inc.php:

Line 89 has:

WHERE t1.ONLINE_USER_TYPE = 'r'

Change that, to this:

WHERE t1.ONLINE_USER_TYPE like '%r%'

Next, line 196 has:

WHERE ONLINE_USER_TYPE = 'a'

Change that, to this:

WHERE ONLINE_USER_TYPE like '%a%'