...and in all of the above be careful with file names.
Windows is generally not fussy about cases in file names so:
image1
and
Image1
are treated as the same thing.
Linux / Unix would see these as two different files, so if you ahve not been 100% consistent between filemanes on disk and file names in your html (or entering them in your WYSWIG editor) then the server will not find the piture. (Pipex runs Debian Lionux according to
www.netcraft.com)
Took me an age to figure that out the first time I hit it. Now all images for the web are doen in lower case so I don't forget.
Also don't use spaces in file names, it can be done but is a pain in the proverbials.