I noticed a possible bug in the javascript that is written out to the page... in ST if you have archives they are located in /st/archives/ and with the tp include when I look at the source it has:
document.write('<s' + 'cri' + 'pt language="JavaScript" src="tp/filter.php?pro='+ d +'"></sc' + 'ript>');
Obviously, "tp/filter.php" won't run from this path.