If the CS3 updates still do not do it for you, all is not lost. You can still Export from PrPro (I'd choose non-muxed, elemental streams) and then Import into Encore. Import your DV-AVI (or DVD-compliant MPEG-2) as a Timeline and your Audio (PCM/WAV, or AC3), as an Asset. From the Project Panel in En, just drag your Audio file to the appropriate Timeline.
Unfortunately, some have had issues with Export to Encore even after the update, and things have not gotten that much better with the Adobe Dynamic Link in CS4 - some people still have to do it the "old fashioned" way.
Good luck, and hope that the updates work perfectly,
Thanks everyone. I'll try the CS3 updates when I get back to work on Monday. I'm somewhat new to this and didn't know there were updates for it.
Both Encore and Premiere have been updated
Apply updates in number order