Title says it all.

For some reason, at the end of this replay, my tori throws ukes chest area, but as he throws it, the chest fly's a bit farther, then blinks back to where it was suppose to be.. i don't understand how to fix this..

Go into the replay, shift P until the frame before it glitches, edit, and shift space. See if that solves it.
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It would overwrite any flawed data in the .rpl file. Otherwise, it's something else.

i saved a replay but its showed another fighter it was supposed to show me instead of that other fighter

Tariq: open the replay with notepad. Then change whichever one you were on (Bout 0 or Bout 1) to your name.

And if nothing else works
Put the replay into that script that shows you all Your joint clicks
Yen redo it