Our web site
http://www.oakridgestrail.org/
uses Concrete5 version 5.6.3.3
and also uses the following add-ons to handle events
Easy Events - 0.9.4
Event Calendar - 3.3.5

Our events are of 2 different types. The main use is scheduling and reporting hike activities. Designated hike leaders have permission to enter and report hikes.
The secondary type is all other events, info evenings, special events, etc. Designated people have access to enter this type of event.

I wish to consolidate event entry and reporting into a single form, we now have 3, and consolidate the info into a single DB. The ability to down load and filter data, by event type, responsible person, date, etc. as a .csv file is required. Currently we have a limited ability to download some of this data.