This first image was processed in PIPP--a great little free package. 2000 frames were cropped and Jupiter was centered. The output AVI was then processed in Registax and the best 400 frames were stacked and processed. The final processing was done in Photoshop.
I pre processed the second image with PIPP. Stacking was greatly simplified and best 700 frames were imported into Registax. This image is composed of about 200 frames from the original 2000. Final processing was done in Photoshop. I pushed the processing more this time. More detail emerged, but the image looks "overcooked" to me.