haveing done this my self i see i dealt with you must do now, im guessing you used adobe photoshop in flm format, that would explain why the Light layer after applying glow shows up on the other side of the frame.
Next time you do this remember to Markey the outer edges of the frames on the saber layer and delete the light glow thats bleeding to the opisite edge of the next frame.
beyond that good job
www.compugears.com/jedi_karma.wmv
my attempt at the time when i first did it to try en learn the tech a few years ago,