Looks good to me John
Is this a single picture or a Registax image from a video?
Also, how did it look visually? Could you easily make out the GRS like in your image?
I've been getting quite frustrated recently from the visual and webcam views of Jupiter with my 10" Newt.
Perhaps i'm in need of collimation, or a better eyepiece (GSO SV 15mm) or webcam (Phillips Toucam ii i think) but i was expecting better results than i'm getting, and i'm using TV powermates for magnification.
Cheers
Bob