I have never worked on this scenario ( 2K publisher and 2005 subscriber), but here is what i think about it:-

1. Did you run the snapshot agent and apply the snapshot once ? ( ps: kinda obvious but just checking )

If you have ensured that the snapshot was applied at the subscriber and still you dont see the SPs, then you can create a subscription on some test database in 2K server and then copy over the stored procs from there to your 2005 server.

Hope that helped