Another problem is that you are building a hash of hashes, but your template seems to expect a list of hashes.

But I thought:
http://www.template-toolkit.org/docs/plain/Manual/Variables.html#Hash_Array_References

Members of hash arrays are accessed by specifying the hash reference a
+nd key separated by the dot '.' operator. 

    my $vars = {
      'home' => 'http://www.myserver.com/homepage.html',
      'page' => {
          'this' => 'mypage.html',
          'next' => 'nextpage.html',
          'prev' => 'prevpage.html',
      },
    };
template: 

    <a href="[% home %]">Home</a>
    <a href="[% page.prev %]">Previous Page</a>
    <a href="[% page.next %]">Next Page</a>
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