If you've been using only save states, please read
this post.
If you have actually made a memory card save, load the last one you made and play from there.
When you "tried everything", did that include using a gameshark code to bypass the FMV, or switching the disc before the FMV (common trick used on real hardware too) to see if maybe it's the FMV file on your disc and not a memory problem caused by not using memory cards?