IGN and Gamespy no longer own Gamespy Technologies as of 2012 August 6
www.glu.com/support owns it gamespy now but I think you can still have your password reset from within game? If not you can still try using old program called gamespy arcade and use that to possibly change or reset or password, for details visit this post:
http://digitalmindsoft.eu/forums/sho...l=1#post235145
Also not sure if this still works but give it a try:
https://login.gamespy.com/lostpassword.aspx