I was able to download the file through the link you provided.
Did you try it as well?
If so, and it worked with you, then the problem would seem to be with your customer. But with so little to go on, I am not sure how we can help.
one of our customer complains that he can't access stylus download in download.com. please help.. here is his email:
Today I am facing problems to download your software from C-Net download.com site (link: http://www.download.com/Stylus-Studio-XML-Enterprise-Edition/3000-7241-10399885.html?part=dl-StylusStu&subj=dl&tag=button )