Digital BW, The Print

I'm running WinXP Home Edition on my PC, and my ignorance of
networking is profound.  After installing the Quadtone software I have
encounted the network error mentioned in the documentation [excerpt
below) -- there seem to be no entries in my network tables (whatever
that means).

I ran the networking "wizard" and encountered no errors configuring my
system as a "network", and was able to share my printer, etc.

So, finally, my question: What is the definition of the "level of
networking" I need to run the product?  I'm not even sure if my PC
came with networking capability (i.e. a network card).  How do I tell?
 What kind of network card would I need (besides being a cheap one)?

Thanks,

Steve Alred

Excerpt form Quadtone installation Readme:

" If you have difficulty there are several helpful pieces on
information.

The first is the command screen that comes up.  The most likely
error is at a line:     net use lpt3 \\computername\Quad2200
An error such as 1231 after is a network problem.  Although QTR 
defaults to the current machine some of the networks tables seem
to be required.   (If there are any Windows experts who know how 
to get rid if this I'd like to know)."