DVD-LAB Pro manual

Hello all,
This is my first posting here. I have used several authoring programs. Such as Dvd producer by sonic, DVD maestro, dvd workshop,
sony’s dvd archtiect etc… I found DVD_LAB pro is the best easy to use software with loads of features.I am amazed with the ease of use and quality. However, I couldnt explore all the features yet. Is there anyone has a manual or tutorial for this great program? Especially, When i auther the movie I cant get the preview working with audio. I tried everything, no luck. any advise?

and finally, the full deal: http://www.mediachance.com/dvdlab/Help/index.htm

Hint: DVDLab has no audio processor.

Thanks a million. I will try to use those guides