[cups.general] printing on a HP722C using cups with knoppix 3.4

[Joe Zien]

I am using knoppix 3.4 and am very satisfied with it's performance but I 
am not able to print
using cups. My printer is HP 722C and it requires pbm2ppa and foomatic 
filter, both are installed in knoppix 3.4. When I try to add my printer 
in cups, it is not shown in the dropdown list under HP.
How do I have pnm2ppa and foomatic incorporated in cups so I can use my 
HP 722C?
I am also using libranet 2.8, a debian distribution, and the HP 722C is 
listed under "HEWLETT-PACKARD" dropdown menu.

jozien