Thankfully I'm not working on a live site, as events added to the All In One Calendar are all happy, until the start time of the event, then 'poof' it disappears!
How is this supposed to work for a 2 week long event if it can't even last a minute?
So, the question I guess is, how do I / we allow current and past events to be displayed in the calendar - or agenda view as I'm using in my case.
Even after updating to the latest Standard version of the plugin [v1.9.2] there is no resolution to what seems like a 9 MONTH old issue of past events being hidden.
Other than that blinding glitch, I actually find the plugin very good, so keep up with the work guys and try to fix the past events will you? ;-)