PSC = Progress Software Corporation
PUG = Progress User's Group
PTW = Progress Technical World, a roughly 3 day long user's conference sponsored by Progress and held in various locations around the world.
Contact Progress by way of your sales person or by following the contact information at
http://progress.com.
You form a PUG by sponsoring meetings of like minded people in your city or region. The hard part is getting the word out and finding those people. You might start by posting something in the chit/chat forum or some such place here at ProgressTalk, posting on PSDN (Progress Software Developers Network,
http://psdn.com) and PEG (the Progress E-Mail Group, the grand-daddy of Progress oriented online forums and by far the largest audience). If you can get enough people interested then you can probably get PSC to help out with organizing your group.