My Quick DeepSkyStacker Tutorial « Flintstone Stargazing
I found it very helpful for the processing of my shot, although I did need to play around a little as it seems all pictures are slightly different so you would need to find what works for your shot. The basic idea is there though. I used his settings as a base and worked from there.
Just out of interests sake, are you using darks, flats and bias frames as well? I had darks and biases as well which I used the first time I tried to process the shots in DSS, but I didn't have much luck and in the one output that did look ok I also seemed to get a much more black and white image. My DSS skills are not very good though so I'm sure I was doing something wrong, but perhaps that's what's causing your problem as well. I actually found that just using 10 of my light frames gave me a better output to work with.
I hope you come right! Let us know how it turns out!