http://www.pasha.org.pk/careerexpo2007/
Karachi, Expo Centre Hall 4 - June 16, 2007
Islamabad, Jinnah Convention Centre - June 23, 2007
Lahore, Pearl Continental Hotel - June 30, 2007
the site says the last date to register is june 23, but i'm not sure if that's the case for lahore as well.
found here.