Hi Fahim,
The first picture I posted I did use wavelets, Mikes settings actually (I have them saved as 'iceman settings'

) but I found that by not doing the wavelets and just running the deconvolution in AstraImage I seemed to get less onion ringing, as shown in my second and third pics. I believe that this is because I underexposed the frames, I only saturated to 150 in K3CCD instead of the recommended 220 or so. As for why it appears overexposed in my final image, I don't know why, it seems to come up bright after I stack them in registax. Maybe I have a setting wrong there?