Hi mickey, welcome.
i havent know any pt club in Nebraska.
not sure if any other members know.
i think you have already found the following forum... the last post on that forum seems few months ago. You can try PM member over there and see if there is any response.
Nebraska Cruisers - Message Board - ezboard.com
Probably you also found the following url.
There seems to have a NE PT Cruiser Club in the past....
Cruise & Snooze in Wells Maine 2003 - NE PT Cruiser Club pictures from cars photos on webshots