Did you ever figure this out? I moved my Opengoo system from an old host to a new host, everything connected just fine, but the documents are corrupt. They show up, but when you try and download and open any of the documents such as a jpg, excel doc, etc, they are corrupt and will not work. Also, none of the User Avatars came over. The Uploads folder is in tact and I uploaded it just fine from the exact server it was working well on.
Any ideas on how to fix this?