Presenter 5 project moved

Hello.

I created a project in Presenter 5.4 a few years ago. I backed up all the files on a USB drive. I now need to make some changes for the client and the computer that had the original files is not available. When I publish form the USB drive, the audio, the attachments, engage activity, etc. are not in the presentation. I figured it was due to different drive letters so I changed the USB drive letter to match the original but that didn't help. I then decided to work on the audio and find the original audio files to see if there was something wrong in the path. I didn't know where else to look except the audio import window, but it truncates the path so i can only see the beginning and end. Where can I see all the associated files and their paths so I can re-associate them?

The client changes themselves take only about 15 minutes to do, but so far I have wasted about 6 hours trying to get this to work so any help and advice would be appreciated.

Thanks.