Just loaded the latest showcat.php from the archive online and now product linsk are:
/reviewpost/showproduct.php?product/107/sort/2/cat/16/page/1 (and now don't work)
They "should" be
/reviewpost/showproduct.php/product/107/sort/2/cat/16/page/1
My guess (line 449):
if ( $Globals['spider'] == "yes" ) $gallery['prodlink'][$count] = "<a href=\"{$Globals['maindir']}/showproduct.php?product/$id/sort/$sortparam/cat/$cat/page/$page\">$ftitle</a>";
that's meant to be:
if ( $Globals['spider'] == "yes" ) $gallery['prodlink'][$count] = "<a href=\"{$Globals['maindir']}/showproduct.php/product/$id/sort/$sortparam/cat/$cat/page/$page\">$ftitle</a>";