Hello Hassan
I hope I can help. Filter Bar will add the 2nd bar found on http://wpshindig.com/events to your default Events page.
Facebook events imported using Event Aggregator would fill in details like the organizer, location, etc. but would not assign categories or tags. That part would be done manually as you edit posts.
Also upon import (Events ยป Import) you can assign a category that all posts imported from the same source would be assigned to.
Does that help? Is there anything else I can help you with?
Thanks
Courtney ๐