Digital BW, The Print

I keep a set of  sample prints I made a couple of years ago  - the same 
image - using Paul's curves for cool, neutral, carbon and sepia, for 
both EEM and HPR.The tonalities and transitions are almost exact - only 
the warm-cool aspect is different. 
The curves are not working now, so I deleted  them and downloaded them 
again, but they still aren't working right. 
The sepia and carbon prints are washed out in the light and medium- 
light tones  and the medium dark tones are mottled.
When I used Paul's slider settings,(HPR) C+7,M-7,Y+25, Con 0, Br-4, I 
get a perfect print.  Got a decent print at Br-4, C=14, M-14, Y+25. How 
can I get carbon, medium warm and sepia tones using sliders? Or does 
anyone know why the curves aren't working?  

I use Windows XP, PS7, and a 7600 printer. The only difference between 
now and then is a better new computer and WinXP instead of ME.

This is making me crazy and I'll be grateful for any help back to 
sanity.
 Arlene
www.arlenelove.com