I can confirm this problem, and the fix.

Open the browser in N900, and navigate to:
http://repository.maemo.org/extras-t..._1.0-3_all.deb

Download it, save it to N900.

open xterm:

sudo gainroot

cd MyDocs/

dpkg -i maemo-org_1.0-3_all.deb

ignore all errors, it should install with success.

close xterm.

uninstall via app manager.