gorob23,
It is too late to get in on this pass. It started over a month ago.
To get in on a box pass, you ahve to be an established c-bid trader witha good rep. Then you have to catch a post starting a box pass and ask to be included in it. If the box pass originator can vouch for you or someone else that has had several successful trades with you vouches for you then you will probably get in. If you have has some questionable trades or are a newbie, then you will most likely get passed over.
There are two box passes going on right now and top my knowledge both of them are full.
Just watch the trade board for future box passes, sign up, and then wait for a confirmation email form teh originator. It's that simple.
Good luck!
Matt