Get it out of the <div> is possibly the solution. You should place the code after </div> in the example you gave. The calender block starts with <div> and ends with </div>.

Hope it works.

Thanks for the suggestion... it didn't work.

Now, I have the code is as follows:

<?php
// -------------------------- CATEGORIES INCLUDED HERE -----------------------------
// Call the Categories plugin:
$Plugins->call_by_code( 'democrcy', array() );
// -------------------------------- END OF CATEGORIES ----------------------------------
?>
<?php
// -------------------------- DEMOCRACY POLL INCLUDED HERE ---------------------------
// Call the DEMOCRACY plugin:
$Plugins->call_by_code( 'democrcy', array( 'gct' => '#F00', 'gcb' => '#D00' ) );
// -------------------------------- END OF DEMOCRACY POLL ----------------------------
?>
<?php
// -------------------------- ARCHIVES INCLUDED HERE -----------------------------

Any more suggestions?