How to name video icons

justme

I have recently installed zenphoto on my website. The directory has sub-directories for photos and video. The icons for the photos are fine but for the videos I get a photo frame and .flv.
Is there some way to name the individual .flvs, to distinguish them one from the other? This must be a basic problem but I have not been able to find an answer in the forum.

acrylian

Please see: http://www.zenphoto.org/news/problems-with-albums-and-images#thumbnails-for-videos-or-other-non-standard-image-