Hey Dunk,
The images you have posted look good mate, great start.
Are these your exposures from Lostock? Most of the time the resulting stacked image which is produced by DSS looks shocking. You will just have an image that looks black/grey and nothing else. I personally never do any processing in DSS and only use DSS to stack the image. I then use Photoshop for stretching, white balance, colour enhancing etc.
Here is a in depth tutorial on DSS I was telling you about (Doug German, the bloke that sounds like Michael Caine)
https://www.youtube.com/watch?v=UWWaKkCUm6c
And here is part 1 of a basic tutorial on Photoshop, from this one you will find links to the 6 other parts.
https://www.youtube.com/watch?v=Ke3iO9d2Qw8
Jase