I live in rural southwest Pennsylvania (outside Claysville), and I'm not an ACC member.
Although my family and I have enjoyed cribbage for four decades, I'm not much of a player. But your program has given me a much better understanding of the game and a chance to play regularly, even though my family is dispersed.
The first cribbage program we ever played ran on our Atari 400, more than twenty years ago. In those days, it was amazing to discover that a machine could play a fair game of cribbage; but we also liked the straightforward interface and, to tell the truth, some of us still play the old game on a PC simulator.
Your program plays the game phenomenally and it also has the straightforward interface that we liked in the old Atari, plus the wonderful ability to peek into the computer's hand and learn about its clever strategies.
I spent the last years of my academic life developing on-line writing programs for a local university, so I particularly appreciate the strength and effectiveness of your program's tutorial modes. Remote tutoring is not easy to effect. Your program has excellent tools for learning.
One more comment. I've also spent some time as a developer of Windows programs and customized interfaces. Although it doesn't need it, if you are tempted to give your program a facelift (as you could pretty easily with the Windows' new .net framework toolkits) keep the interface as clean and unadorned as it is now.