Try this site. It may help.
http://www.fabriclink.com/Carpet/Carpetstain.html

Charlie


"Mark" wrote in message
ups.com...
A carpet in a house that I bought has round orange stains at the
bottom of where table legs sat on a plush off-white colored carpet. I
am assuming the carpet was cleaned and nothing was placed under the
legs, which were cherry colored. I have tried a rug stain removal
product and a 91% alcohol solution and neither had any effect at all.
Does anyone have any ideas as to how or whether I can remove the
stain?

Thanks,

MD