this
http://code.google.com/p/sigil/issues/detail?id=501 says it's fixed, but i seem to have the problem.
i have about 500 images in 50 or so chapter folders. sigil does ok on the first two chapters that have images and then shows missing images for the remaining chapters.
the html files are from word 2007, so things are a bit messy.
my html for the images looks like:
img src="chapter1_files/image001.gif"
thanks