2006 WSOP, Harrah's AC

I'm interested in playing in one of $500 Buy-in NL tournaments on either feb 7,8 or 9.

I checked the Harrah's site which directed me back to the WSOP site which didn't have any specific info. If anyone could help me out w/ the following, it would be greatly appreciated.

Thanks.

1. What is the registration procedure?

2. Is the number of players limited? If not, how many players do you think will be in each tourney?