How do I send e-mail with a picture attached (using Entourage on a
Mac - Sys X 3.8) so that when it is received by recipients (225 people on list,)
the picture displays in the e-mail body (cross platform)?

Seawolf --

You should be aware that some e-mail systems block even GIFs and JPGs
now, often for security reasons.  So, there's no guarantee that it
will display at all.

To get a proper display you'll need systems accepting HTML mail (which
reduces the population yet again) and want to use the RELATIVE size in
the IMG tag, expresssed in percentages of the column width instead of
specific pixels.

An example follows of a typical IMG statement:
<img src="images/Logo.jpg" width="358" height="208">

But since you don't know if the screen on which the Logo.jpg is being
displayed is 460 pixels (VGA), 600 pixels (SuperVGA), 768 pixels (XGA)
or higher resolution -- you may wish to fill the screen.  You do it
with a relative size statement, expressed like the following:
<img src="images/Logo.jpg" width="100%" height="100%">

Best regards,

Omnivorous-GA