still not clear on this sound issue

[PantherRun]

Hey out there;

I'm still not right on what to do on this sound issue for my broadband project.. When i publish my movies the VO quality goes in the ditch.
So, in the library I go to settings, pick 'speech' as the compression at 44khz, test it, sounds good, publish it, sounds bad.

So i go to publish settings box and here's where i'm not sure what to do next.

Default settings seem to be mp3 16kbps mono. From the books it seems a better setting is 128kbps at 'best'. I do that and the sound qulity goes back to the prepublishing level- great!

But here's my question.

The default settings only talk about Audio stream and Audio Event, seemingly to treat an mp3 song and a speech track the same, where as in the library, i could set the song at one setting and speech at another...

Right below those settings is a box that says "Override sound settings". If i check that box will it KEEP the sound settings I established in the library?

Or is this nothing to worry about?

Finally, Should i set settings higher than 128?

thanks
Hoss