Help. Upgrading ubuntu to 7.04 failed

Hi there.

I'm in a school and our radio is powered by campcaster.

While upgrading to ubuntu 7.04 feisty fawn the upgrade process freezed in postgresql-common.

Now the system is completely unstable. I'm thinking in a fresh reinstallation this time with hardy.

Myu problem is that the students have created a bunch of playlists in audacity and import them to campcaster.

I need to save these musics that are in the music database but I don't know how to do it.

Does campcaster install the music database in filesystem?

Any help is welcome!!!

Thanks in advance
Paulo Tavares
Radio Manager