You should copy the entire dvd to harddrive first.
Then open 5.5 and import a 5.0 project from the harddrive.
See it that will work.
I did copy the lessons to drive and tried to open project then this comes up:
This project was saved from a previous version of Adobe Premiere Pro and must be converted. The original project file will not be modified. Continue?
It gives you a file to convert.... but it does not convert. That is there is a project in form but no videos or images.
Importing the project will skip the question above but end result the same.
That is there is a project in form but no videos or images.
Are there no offline images in the timeline?