Ok, the first 3 are the original repositories. You should enable "maemo Extras" and fix the distributions/components on that (like below). So here are the ones that worked for me:

Catalog name: Nokia catalog
Web address: http://catalogue.tableteer.nokia.com/certified/
Distribution:
Components: user

Catalog name: Nokia catalog (3rd party software)
Web address: http://catalogue.tableteer.nokia.com/non-certified/
Distribution:
Components: user

*THIS ONE IS UNEDITABLE* (for me anyway)

Catalog name: Nokia System Software Updates

Catalog name: maemo Extras
Web address: http://repository.maemo.org/extras
Distribution: chinook diablo
Components: free non-free


Catalog name: maemo
Web address: http://repository.maemo.org
Distribution: chinook diablo
Components: free non-free

With these settings I have been able to get just about everything I can recall having installed to reinstall again.