You are missing quite a lot of the expected animations for both the character and the sword. Therefore changing animationframe in the 'Slashstyles' Group will not work.
It's a shame the original .capx is missing, but it is a 3 year old link. Maybe someone still has the original (guys!).
** Update **
I've checked the game in the Arcade that this is based on but it doesn't work for me, so I can't determine what the animations are meant to look like.
It may need some helpful soul to dig out the original .capx to see what the animations are meant to be, unfortunately.