Here it is:
http://www.pbase.com/gregbradley/image/108596154/large
The stars may be a bit too coloured now but anyway:
1. 2 or 3 runs of Noel Carboni's "reduce star size" (this is basically resize up x 4 times, then minimum filter then resize down).
2. 2 runs Noel Carboni "increase star colour". This is basically using the colour range tool to select out stars after resizing up x 4 and using saturation and resize down possibly a bit of gaussian blur in there as well.
3. Curves on red channel to bring up the red nebula more.
4. Sponge tool set to saturate 5% and rubbed on the red nebula areas.
5. Not much else.
Greg.