Help With Jaris FLV Player (or other)

I am trying to integrate the Jaris FLV player into a customers website and for the life of me I can't get the videos to play. The example videos they have play fine in their html file but when I follow the guides to integrate it I can't get them playing. There's no JS errors and I am 100% positive the path to the file is correct. Should be a simple job for someone that has worked with this thing before. If you prefer another FLV player (must have play controls) I am open to that also.