Need help asap please

[SSVegeta4511]

ok im replacing ike and marth with cloud and seth and pokelizardon with ridley like i used to and it worked but now when i put there pac files in those folders they are not coming up when u go to change ur character when u click on the pic what do i need to do to get them to show back up?? and be able to use them again can somebody please get back with me on this asap please. thanx and have a great nite and marry x-mass