Digital BW, The Print

Hello,
I am using XP,CS3 and an Epson 3800. I have made a paper profile using 
Print Fix Pro and am only making Black and White prints. My 
understanding is that I should pick this profile in Photoshop and not 
with my 3800. When I use it in Print with Photoshop the print comes out 
gray but when I use it in Page Setup for my 3800 they looks great. 
Everything I read says Photoshop should control color and that the 
profile should be chosen with it and not the printer. Are other using 
the printer to control the color and any ideas on why my prints are not 
looking good with Photoshop controling the color? 
Thanks,
GaryW