As dws pointed out this will not compile. You are also mixing the OO and the functional interface to CGI.pm (which is bad ju-ju).

It is always a good idea to either 'command line' a non-working CGI script (Lincoln Stein has done a great job on the CLI for CGI.pm IMHO) or check the error logs of you web server. Either one of these would have pointed you in the right direction.

$query->start_th({-align=>'center'}), strong('DAY'),
##Should be
$query->th({-align=>'center'}), $query->strong('DAY'),
[download]

grep

grep> cd pub grep> more beer