You need to change your working directory.
You did this:
C:\XXXXXXXXX\crosscheck-0.2.1\docs\tutorial>java -jar ..\..
\crosscheck.jar events.jst
But, you need to do this:
C:\XXXXXXXXX\crosscheck-0.2.1\docs\tutorial>cd ..\..
C:\XXXXXXXXX\crosscheck-0.2.1>java -jar crosscheck.jar docs\tutorial
\events.jst
The tutorial assumes that you downloaded the files from the page and
saved them in the same directory as crosscheck.jar. Most people will
probably use the included files, so I'll change the tutorial to
reflect that.
Thanks,
Jason