color calibration

Hi,
I just bought a canon i960 printer, which I love, but compared to
my previous lexmark z55, the canon prints seem really pale or washed
out. So I have been reading about color calibration and have run Adobe
Gamma on both my displays and have changed my Color Settings in
Photoshop to U.S Prepress Defaults on both displays as well.
Now when I open a file in photoshop, a "missing profile" prompt shows
up. I think i should assign it a profile that matches my printer, but i
have 4 choices for canon i960.
here is a picture
http://largebuttons.com/fileupload/color.jpg

Canon i960 MP1
Canon i960 PR1
Canon i960 PR2
Canon i960 SP1

I have no idea what the difference between these is.


Am I going about this correctly?

Thanks so much!
Chuck