Digital BW, The Print

I created a couple of ICC profiles using the Quad Tone RIP ICC generation tool. I put these in the appropriate file and tested them (created them, actually) using CS4. They work fine with CS4. However, they do not show up in Lightroom, even when I open up the ICC panel and check under profiles>other. I tried selecting monitor ICCs just to be sure it wasn't listed there - it wasn't. 

Earlier I did have some issues with CS4 showing the ICCs correctly, but this turned out to be due internal file naming issues and I solved this so that the ICCs work fine with CS4.

I have seen posts that state that Lr can only use RGB ICCs. I created the ICCs using the step tone wedge tool and the basic ICC generation tool. I'm not sure if they are RGB or not. (Certainly not CMYK.) How do I determine this and create ICCs that will show up in both CS4 and Lr?