I need help finding CS3 Manuals... does anyone know where I can find an online manual or a pdf file? thanks.

There are no printed manuals per se. The documentation in PDF format is available for download on the Adobe website. And there are gajillions of third party manuals and reference books at Amazon, etc.

Moved from Open DV to Adobe.

Here's the link to the Premiere LiveDocs, from which you can get to most other CS3 stuff:

Adobe Premiere Pro CS3 (http://livedocs.adobe.com/en_US/PremierePro/3.0/index.html)

Unfortunately, Adobe has killed much of the content to blackmail us into moving to CS4. But the basics are still here.