Currently we are open only to reciprocal's. There are something like 30 121 outfits right now that we can reciprocate with.
As far as being bumped goes, well from what i have been told, if you are the first one to sign up, you are the one that is going. Now i could be wrong, but i believe this is how it works. If you fly on the jets, then the airnet guy and yourself will both get to go.
To JS you must first call our dispatch department to get put on the list. When you call they will ask you some info to verify who you are and that you are on our recip list. They will also give you the routing and where to meet the flight crew for your flight... which must be 1 hour prior to departure. When you arrive at the plane the capt will again ask for your cert's and any other kind of ID he deems necessary to prove you are who you say you are. It is of course up to the capt whether you can ride, just like everywhere else... the only reason i can imagine you not being able to get on would be weight restrictions.
Let us know if we can help