Having trouble converting Abode Prem Pro 1.5 files to Premier Pro CS3 files. Can anyone out there help? Is there any special way to import and/export these files?

No, you should just be able to open them directly in CS3. But be aware it's a one-way trip. Once they've been saved in CS3, you can't open them in 1.5.1.

Duplicate post.

I had to transfer a project from 1.5 to CS3 last year - it took a long time.
I found that the thing is not to try clicking anywhere when nothing is happening because everything seemed to be so finely balanced that CS3 would just freeze.
It will open the 1.5 files in the end. What you must do is to immediately save the project with a new name and forget the old one...