The guest in M1333 are determined by the Statuses selected in the "Guest Statuses" multi-select box in the report filters. Whatever statuses you select is this box will be counted as guests. Also these are a breakout of the Kids total. They are not in addition to the Kids total. So say you have 147 under kids total and 9 under guests. That means that 9 of the 147 were guests. Please let me know if you have any further questions.
Wil Mullins
Fellowship One
Report Central