I was browsing to look for assistance and noted your post. I am relatively new to OSC and new to sts but I have learned much from the tips I have collected.
It seems to me that the reason your images are not showing is that you have to enusre your images are inside the images folder (or in a folder inside the images folder) and use a relative path to images with no backing out of folders as you have done. i.e. ../ or ./ is not accepted. only images/spacer.gif or images/site2/spacer.gif
All images come from inside the images folder. That is pre defined in the configure.php file.