Art, I agree with the others suggestions to use a table to have a
clean layout.
if appears from your html code (which is quite readable actually) that
there is no carriage return (br) in the whole sequence of pictures,
that's why they are all on one single line.
for a simple solution to your problem, just insert a br instead of
the     after a picture, and the next one will be on
the next line
hth,

Pascal