What I find strange is that the common files package seems to be installed, but some of the files in it are not installed. That seems to be the hurdle that I can't pass, though that is more likely to demonstrate my knowledge limits rather than computer problems.
 
There's a lot of brainpower going into this issue from several people. I wonder, would I be better off just forgetting it, uninstalling apache and using something like lighttpd. I ask this as a genuine request for opinion as I have absolutely no experience at all with "lighty" and have seen mixed reviews.
 
Keith