Actually a better link is gong to be to go to
http://www.catalystdemos.com, register as a player (or better yet as an agent!), and checking out the Support page, where you can request support for your area or convention.
Now, whether the agents can support your con is another matter. We have to have people in that area. If you yourself are looking to run at the show an want support for that (in the form of adventures and the like), becoming an agent is definitely the way to go.
Ray Rigel, aka sinthalix here on the forums, is head of the SHadowrun side of the agent program, so he'd be the one to talk to for specifics about this stuff

Bull