From ChicagoBlackhawks.com: (link)

All available rooms for the Inaugural Blackhawks Convention at the Hilton Chicago have been sold out! However, weekend passes to the convention are still available and can be purchased at the United Center Box Office, at chicagoblackhawks.com/convention, at Blackhawks home games beginning on February 27th and by calling TicketMaster at (312) 559-1212. Tickets are $50.

“The response from our fans has been overwhelming,” said Blackhawks Team President John McDonough. “I would encourage fans who want to attend the convention to purchase their passes quickly as the response has been shocking.”

The Inaugural Blackhawks Convention is believed to be the first ever team sponsored convention in National Hockey League history.