I'm not aware of a specific de-bunking of this particular argument (or set of arguments).
I find the article you link to be somewhat confusing.
The author seems to be making a lot of the fact that there are differing amounts of gold coloured foil on various parts of the Lunar Module. Given that different parts of the spacecraft (and even different spacecraft, he has photos of the Apollo 15 LM and the Apollo 11 LM) are being shown I don't see how differing coverage of foil says anything about faking of images.
The other main argument seems to focus on the apparent thickness of the ladder stringer in the video captured by the camera as Armstrong is descending the ladder versus other still images of the same ladder. It is quite hard to see clearly the various features in the video. If you look at this still image
http://www.hq.nasa.gov/alsj/a11/AS11-40-5866HR.jpg
which shows Aldrin about to descend the ladder, you can see that the left hand stringer has a long 'I-beam' shaped part attached at the lower section (bottom 6 rungs). This is in fact the casing used to house the flag, as shown in this demonstration photo taken of a mock-up on Earth.
http://www.hq.nasa.gov/alsj/mccraw.gif
So I think the author of the article is being mislead in part by the appearance of this feature in the video.
You can see scans of all the lunar surface Hasselblad images at the site linked below
http://www.hq.nasa.gov/alsj/a11/a11.html
http://www.hq.nasa.gov/alsj/a11/images11.html#Mag40
The movie shown here
http://www.hq.nasa.gov/alsj/a11/ap11_goddard_HSK_1st_5_mins.mpg
demonstrates that the dark features beneath Armstrong are not some kind of stage but the shadows of the LM cast on the Lunar surface, as when he makes the jump down to the footpad he goes waist-deep into the "stage".