The CM Organizer free trial is fully functional. Nothing is restricted beyond the 30-day time limit.
The checkboxes to the right of calendar cover a week of days for you to mark off and those don’t show up on the calendar. Because we’re only a week into June, the calendar doesn’t yet show June. Instead, you can use the week of checkboxes next to the calendar. If you mouse over the abbreviations of the days, the Organizer will tell you what date the checkbox covers.
Tomorrow, June 1 will be available in the calendar, since it won’t fit into the week of checkboxes anymore.