I tested it with prints made from the original tiffs that are included with the QTR download and they works just fine, and I did not need to use the updated target images that Keith Cooper recommends.
The output data works fine with the QTR-Linearize-Data script with the 21x4-random and 51-step gray as well.
Here is a link to the blog post with the dropbox link for the reference charts. I will update and test the other reference charts when I get a chance. I tend to use the either the 21x4-random or the 21-step-gray that I average with 6 readings so I created spreadsheets that reference the measurement data and then copy those to a separate .txt file that i plug into qtr-linearize-data. All that will be explained in more detail in the refined profile creation workflows I am writing up.
Richard Boutwell