XPath parsing error

I am using java xpath to get the markup off of an external web site? Is this legal? I wanted to get live XML feeds of football scores but everyone charges. So I decided to take this approach, is it legal to take the markup of someones site and parse it to get the same result as having the XML feeds?

Secondly when I try to xpath this site i get the following error

"White spaces are required between publicId and systemId."

I know why I get this error but to fix it i need to alter the XML, which I cannot do as the site is not mine? Is there anyway to work around this!