Here you go;
I've been using this version for a while (Version 18.104.22.168), and downloaded it back in January 2010 from markham.dcmembers.com/Release/SetupCircleDock.zip.
I never grabbed any versions after, and after a lot of digging I can also only find the 0.9.x versions out there.
If anyone has a later version of Markham's product that would be great
I had to zip the install folder for it as I don't have the original setup file, but it's how I've been transferring it between my machines. It reads Preferences from C:\Users\(username)\AppData\Local\CircleDock