> I see a changes and an image file - neither compressed in the "2.3" dir.

That's the bare image+changes file. You're better off downloading an
entire package for your platform. In the Win32 (e.g., Win95/98/NT) case
this can be obtained from

ftp://ftp.cs.uni-magdeburg.de/pub/Smalltalk/free/squeak/win32/Squeak.zip
http://isgwww.cs.uni-magdeburg.de/~raab/squeak/Squeak.zip

> Not to be terminally obtuse, but do I just download those to my squeak dir
> or what?

If you take one of the above you'll have everything you need for Squeaking
on Win32.

  Andreas
-- 
Linear algebra is your friend - Trigonometry is your enemy.
+===== Andreas Raab ============= (raab at isg.cs.uni-magdeburg.de) =====+
I Department of Simulation and Graphics      Phone: +49 391 671 8065  I
I University of Magdeburg, Germany           Fax:   +49 391 671 1164  I
+=============< http://isgwww.cs.uni-magdeburg.de/~raab >=============+