Solved! The response I received from ebookwise:
You can upload IMP files from the link below:
http://my.ebooksystem.netI tried it with one of the .IMP files I downloaded from this forum (MobileRead) and it worked beautifully!
I would have been struggling forever. Then DaleDe stated the obvious! Ask ebookwise. Don't even need Personal Content Server. All ebooks of varying versions, I have uploaded and haved worked. We are one happy couple. Headed north with a fistful of books! Thanks again. I encourage anyone with any problems to ask. You will never be made to feel inferior.
