I've just started using newsgroups. I could really use a tutorial. Does one
exist? I'd like to get the most out of the help they offer.

OE6 seems to indicate in the Folder pane (by means of a value in
parentheses) that the newsgroup contains several thousand messages. However,
in the preview pane I only see a few hundred items (are these what are
referred to as headers?). Why don't I see the several thousand? I don't know
if the messages displayed are downloaded or not (and what does it mean if
they are?)

I haven't been able to find Help to explain what to expect if I click
"Headers" on the toolbar.

Is it possible (is it even practical or recommended) to display information
about all messages in the preview pane? Or is the best use of a newsgroup to
use "Find" and enter a search argument?
Thanks, Charlie