Jim, I want to give you a big thanks for this software! I got V1.1 loaded on my old HP Ipaq Rx 3715 after updating my .net. It works great and I can now read ePub on this older Windows Mobile device.
I use Calibre to convert my ebooks in other formats to ePub formats. Since I can't just sync directly I just have Calibre "save" to a folder on my hard disk and then copy and paste directly to the Ipaq.