Here is the link to the PDF file for the decal sheet you can freely pull down and use:
The sheet is designed for printout on Decal printer paper which is easily available online. These decals are designed for the CLEAR or WHITE decal paper (based on your model and paintscheme needs). The procedure is as follows:
Size wise, the larger decals are best used for heavy jacks, or even buildings and terrain peices, and move down in size to the large array of infantry sized towards the bottom.
In any case, enjoy and I wish you the best in using this set to really dress up your Nightmare Kingdom forces.
~Please feel free to leave comments, and I have a funny feeling we can expect more of these coming down the pipe in the months ahead.