Digital BW, The Print

I made a print in QTR..print looke good..a little warm..then I re-read
the instructions and saw I was supposed to first change it into
photoshop to grey scale from RGB. I did that and the print was
terrible..flat no contrast. How am I supposed to use the grey space
zip file which contains gray matte icc, gray photo icc, rgb lab
icc...etc.? They were moved to the QTR folder. Also I downloaded the
curves for various papers, extracted them into QTR, but I do not see
them pop up in the GUI interface. What am I doing wrong. As always
thanks for your support..Ann