Which release did you download? If you downloaded one of the source
code packages, then you need to build it before you can use it. If
that's not obvious to you, then you're probably better off with one of
the pre-built packages. Try downloading and unzipping
"crosscheck-0.2.1.zip". That should give you what you need.
Once you have the right files, you need to run crosscheck from the
command line. And you'll need to have the Java runtime installed on
your machine, if it's not already there.
Good luck!
Jason Wadsworth
wads...@thefrontside.net
The Front Side Software
http://thefrontside.net