Wow, I don't know how this happended because I haven't done anything remotely experimental today. I'm afraid I can no longer install software on my N800 (OS2008)

Trying to update the application manager repositories with "Toos>Refresh application list" I get "Unable to refresh application list. Unable to access catalogs. Check network connection. Try again?" The network connection is fine.

Check log. Log says "E: The method driver /usr/lib/apt/methods/htto could not be found."

This sounds bad, like my apt installation is corrupted or something.

I initially ran into the problem when clicking an "install" link at Maemo.org (for Xournal.) Tried rooting myself and "apt-get update" gave the same message as in the log.

Ideas? Any help much appreciated! TIA!