Digital BW, The Print

Hi - what a group! One of the most active groups I've seen.

I'm using a Sony DSC-F70 to shoot infrared shots. I've been hearing 
about using quadtone inks for superior prints, but am not quite sure 
I understand the process. You exchange the color ink cartridges for 
shades of gray, then use some sort of color profile setting to print 
on special paper? Is there, like, a "quadtones for dummies" site I 
could go to?

The printer I have is an Epson Photo 700, which was donated to me by 
a frustrated friend. Seems he hadn't used it in awhile, and the 
printheads dried up. He couldn't get it to print again no matter what 
he did. Any advice for this, short of buying new printheads? Are 
their settings out there for quadtone inks with this printer?

I'd love to see some examples - a site with scans, for example, of if 
there's anyone living near Athens, GA, I'd love to see some real-live 
examples.

TIA,

Jim