Ahwii,
I am having the exact same problem. Did you ever find a solution here??
Everything appears to be configured correctly and the .vbf file is publishing to my FTP site just fine, but I see the same "No Information" message that you see when I try to schedule a meeting with the contact. I have put the FTP address into the Contacts Details > Internet Free/Busy field, so it should be looking there for info.
Thanks for any help,
bgr