That's certainly bizarre! What are the names of the jpg files? The only thing I can think is that if they have the same base name with sequential numbering, then maybe they're being imported as multiple instances of the same frame sequence.
Import all the images into Photoshop and resave.
Its some kind of bug.
Thanks for the reply. It was, indeed, the way I renumbered the jpg files. Since I had to muddle through 7 different people's pictures, I renamed them in the order I wanted to use them (001, 002, 003.jpg...). By doing that, Premeire got confused. The strange thing is even if I left the images as their original names when they were downloaded off the cameras, if it was in some sort of numbered order (ie: canyon231, canyon232, canyon233.jpg...) it would do the same thing. ANY ordered list would convert ALL the pictures to the same one. It is definitely a bug. But after finding the problem, I was able to make the necessary changes in the names to prevent the problem from happening. Tough to do when I had over 1000 photos to muddle through and organize. =/ Thanks for your replies!