What a flight!! I blasted off from Skiathos tiny runway at full thrust and continued over the frozen and snowy lands of eastern Europe. On approach into Munich, severe turbulences made me struggle to descend and finally it was pouring rain and 0 visibility at Munich... So I ended up with a CatIII auto land at Munich, what a shame... But the 757 handled all this weather very well and the landing was very smooth!!
You could also import part of the basic X-Plane apt.dat into the scenery (only keeping KDEN obviously) instead of re-drawing all the taxiways yourself.
WED is your friend. Import the DSF into WED (using file-> Import DSF), proceed to draw taxiways and runways, and export the resulting package (Ctrl-B ) Although this creates a new DSF, It'll retain all the details of the original conversion.