Hi, I was looking for help about this topic, and I found your messages.
I already have my MAJOR STATION LABEL STYLE edited with the profile reference text, and get "???" in the label, but I just can´t figure out how to associate it to my proposed profile.
I read you finally did it, cold you help me?
you are almost there. just like beavivil1 stated, first select your label. In the properties, at the top you'll see the properties for the data. Just select it and pick the applicable source. The other way is after you select your label and place it, right click and a menu will come up to select the applicate reference.