How to Change a Hack to a New Character

[bonusminutes]

Hey, I was wondering how I could change a hack thats already replacing someone's bones to someone else. This is the hack that I'm specifically interested in:
http://forums.kc-mm.com/Gallery/BrawlView.php?Moderated=1&Reported=All&Wifi=0&Name=*tifa+over*&ByUser=*&Credit=*&Info=*&Thumb1=*&Type=**&TypeAlt=*
This hack replaces King Dedede with a Tifa PSA. I want this PSA of Tifa, but I also want to keep King Dedede. I hate Yoshi with a burning passion so I would rather this replace him.
How would I go about this?

[SwingSet]

People to tend to port characters over another. Especially Yoshi in some cases. Maybe try requesting it in request section.