Here's how I was able to get it to work:

1) Add add this catalog - http://tuomas.kulve.fi/debian
Dist: bora
Components: maemo

I personally deleted my existing Tuomas catalog that was Chinook instead of Bora, not sure if it's absolutely needed though.

2) install libvorbis0a

3) install this deb http://kenneth.christiansen.googlepa..._0.3_armel.deb

4) I can't remember if I rebooted or not, but probably did.

5) Enjoy your oggs
this should give you OGG support