Seeking MacPalette II's "Plot Starter" extension

Hi

I have a registered copy of MacPalette II, which is for printing color to the ImageWriter II from just about any application from system 9 and earlier... don't know how early though...

..Anyway, it also adds the ability to do background printing with the ImageWriter II, but I'm missing the extension that makes it possible. This extention is called "Plot Starter"

Anyone got a copy of this extension?