Heya!
These resources are just graphics, so really they will work with any script that is designed to use such graphics. I tried to make most of the resources fairly standard in their format so that they would work with most scripts without much trouble. As such, the animated side-view battlers work great with Battle Engine Symphony, Victor's animated battler script, and any other script that uses 'Holder's' style battle sheets. There are also static side-view battlers in the packs as well if you don't want animated battlers. There are front-view battlers if you want to use the default system. For ABS type games, they rely just on the sprite sheets, so you can still do that. I know one game, the Legend of Erthia, one of its versions uses an ABS system with my sprites and I think it works out pretty well. Aside from that, you can use the faces/busts/portraits as you see fit with various scripts that add those sorts of functionalities.
So all in all really you can use the graphics with just about any scripts.