Download and install the most recent version of the package. The
\rotate command was broken in older versions of the package.
Note that if you view the typeset table with the
xdvi LaTeX previewer, it may look like it is running off the page. It will, however, print properly. If you want to view the table without printing, redirect the
dvips output to a PostScript file and use a PS viewer like Ghostview to browse the output.