I agree with the other advise. We have to know what the file type is of the video files. Something seems to launch Quicktime, when you try to access these files, but it appears they are not completely recognized, thus only the QT generic window.
I don't think they'd be wmv format, because those are not directly compatible on a Mac, and require Flip4Mac to play back, but I don't believe iPhoto will let a wmv import.
OK...let us know if you have further info about this...or, maybe you've figured it out, in which case, we'd like to know about that too.