Hi all,
I have been watching this forum with some interest and have been very unhappy in not getting the upgrade email on my JBC yet and have myself started thinking along conspiracy lines... lol
Anyway, it seems modifying LuBIB's link to the following works!
http://www.jetbook.net/update/jetbookcolor/user122782
DL is slow for me and I have not yet updated. Hope this helps the anxious.