I'm not a total disbeliever in all things conspiracy (for instance the official stories on JFK and 9/11 just don't add up), but I think it's safe to say this one has been pretty thoroughly debunked.

Also, if you look closely at the shadow in the first picture that looks like it's coming from the flag, it doesn't actually meet up with the base of the flag so it must be caused by something off the edge of the picture.

http://www.badastronomy.com/bad/tv/f....html#parallel
http://www.apollo-hoax.me.uk/strangeshadows.html