A few problems (Fedora / 2.4.22-1.2149.nptl core)

I've been logging my move to Fedora (from RedHat9) in this journal - ongoing problems are Public, and I change them to Friends-Only as they're resolved.

There are a few things I'm currently fighting with:

1. p2p (file sharing) - what to use? (details)
2. getting Flash working with Opera (details)
3. APC UPS daemon (details)
   and most recently
4. no sound - it detects the card, but I still get errors, e.g. "can't start sound i/o" (details)

Any help would be very welcome!