Plot Expl'n Summary

Would anyone mind explaining to me the location and function of the various
plot "things" in ACAD 04? I've been working perfectly in 00 - 14, but never
really set down to figure out what I am doing with these things or where
they are located.

For instance:

1. Where is a "Page Setup Name" stored and how does it affect a "Plotter
Configuration", "Plot Style" or Paper Size or other configurations in the
Plot Dialog Box? Does it set all of these?

2. Why can I sometimes not get a previously set up Page Setup Name into the
Page Setup Name dialog box into a new drawing with the IMPORT command
despite selecting it multiple times?

3. Is the Plotter Configuration > Name a particular file type? Is it a
plotter driver and if so where is it stored?

4. If I want to setup my own folders for Plotter (support) items that is
dedicated to my custom settings - can I go into the Option and change the
filepath to a folder in my "My Documents" > folder in WinXP and have all
these options in the Plot Dialog box look directly in this folder as opposed
to going to 04's new paths (whatever they are exactly).

Any advice is much appreciated.

Much Thanks,

Jonathan