Thanks for replies.
Since the clips would not be run on the server, it would seem that something's wrong in my implementation. I believe TCH-Glenn is referring to "absolute" paths - yes, I have used absolute and relative paths in the code, but to no avail. It may be how I am copying and saving the .dcr file. I am opening the .dcr zip in Notepad, changing the file extension, and uploading it as a binary.
As for the AUP regarding permissions for video clips, I would have all necessary copyright permissions, and the clips would be G-rated. So I am assuming permissions may refer to this clause: "You are prohibited from excessive consumption of resources, including CPU time, memory, disk space and session time. You may not use resource-intensive programs which negatively impact other customers or the performance of TotalChoice Hosting systems or Hosting. TotalChoice Hosting reserves the right to terminate or limit such activities."
??