its been a while since ive tryed it but i think you put the .ape in the plugins folder of winamp (or were ever the other ape files are) then you have to add it to each AVS file.
put the freeframe patchbox file in the resolume plugin folder.
and then open both winamp with the moded AVS plugin running, open resolume, then open patch box.
it took me awhile to make patch box work jus have a play.
hope that helps