tt hash values not printing....

starting with a hash ref....

my $my_hash = {};


building the hash in a loop...


          push(@tmp_arr,$val1);
          push(@tmp_arr,$val2);
          $my_hash->{$index} = \@tmp_arr;



the elements for any key can be access fine as   $my_hash->{$index}[0]



I am passing a hash like this:

    my $vars = {
       myhash => $my_hash                 
    };



PROBLEM 1: trying to print like this, it prints the index correctly but does not print any values.... i am confused why?

    [%- FOREACH index IN myhash.keys.sort -%]
    <tt>index number=[%index%]  dt-time=[%myhash.$index.0%]  detail=[%myhash.$index.1%]<tt>
    [% END -%]


PROBLEM 2: the sort is not sorting numerically, so i get 1,10,11,12.... 2,20,21.....