As Endnote Web (or Endnote Online, or
Endnote Basic, or whatever it is being called this week) is evolving fairly
rapidly, it is probably time to have another look at linking your endnote
desktop and Endnote Web libraries.
This is done from Endnote desktop, from
Edit | Preferences | Sync.
You will need to enter your Endnote Web credentials
(set up from the My Endnote Web page. The system will then transfer records
between your Endnote libraries (the one on your desktop and the one in Endnote
Web) and keep them both up to date.
Be warned. The first time this is done it
can be slow, however.