1. Authors of the TopStyle allows integrate Lite version only. It's no PSPad limitation but TopStyle limitation.
2. PSPad allows you highlight embeded PHP, not some specialities in PHP like Smarty. I don't know smarty. Can you tell me some examples of Samrty in PHP ? -- <http://forum.pspad.com/read.php?6,35337,35720> PSPad freeware editor http://www.pspad.com
