Lambert's gonna be in Butler PA..
Got this info from a fellow fan (who just happened to gift me an authentic Lambert Jersey this weekend, ironically)
http://www.shopclearviewmall.com/events.php
JACK LAMBERT Appearance!
Date: October 10, 2009
Time: Noon - 2:00pm
Location: Center Court
Description: We are proud to announce that we are working again with BT Sports Memorabilia and Gil's Collectibles to bring Legendary Hall of Fame Pittsburgh Steeler #58 Jack Lambert to Clearview Mall on Saturday, October 10! ADMISSION TO THE EVENT IS FREE, however you MUST purchase a ticket to receive an autograph. Tickets are ON SALE NOW at Guest Services. Ticket fees are: $60.00 for small flat items to be signed (including photos up to 11x14). $75.00 to have Large Flat items and Mini Helmets signed. And $125.00 for any large or premium items to be signed (Jerseys, Footballs, Helmets, etc.) Lambert will only sign Reebok, Mitchell or Ness Jerseys - these are the companies he currently has license agreements with. Purchase your items to be signed at the show, from Clearview Mall stores, or bring some from home!

