I am confused about installing commander 2.7 after GWX 2..

Ok, I installed GWX 1 and 2 and then commander 27. I read there was a GWX patch for the commander. Is that true? If so does anyone have it. I think I messed something up because I did a new career and I have seen no ships for a month. I went to the scapa flow docks on the surface and found nothing. There is definately something amiss.