Thanks for the reply! I tried this and it worked but not quite 100%. My home movies are in a folder called:
The home movie that I wanted a thumbnail for is called:
2010 Outerbanks.avi (which resides in the 2010 Videos folder)
I took a jpeg pic and renamed it: "2010 Outerbanks.jpeg" and dropped it in the 2010 Videos folder.
The thumbnail appears in the 2010 Videos folder and not the 2010 Outerbanks.avi file...
Am I doing something wrong?