relative image paths

[jaberwok8U]

I want to put links to image files on my web server instead of embedded images, but I can't get it to work. If I put an image in my file and choose "store only a reference to the file" the image does not show up in IWP (instant web publishing).

I tried using a calculation that returns a container:

"size:601,94

image:custsat-header.jpg

imagemac:custsat-header.jpg"

This works locally, but again not on the web server. Is the problem that I am not working on the host machine? It still seems like I should be able to enter a relative path and have it work. Please help.