Ok. You're right. TSSE has subtitles section. I have seen a tbdev source(not found the mod) that in details.php there is a choise where you can upload subtitles. So, when you do that, a little flag appears after the name of the torrent in browse.php. In this way you know that the torrent has subtitles(It is useful for me, since i am Greek). TSSE doesn't have that. CAREFULL. This flag appears after you upload the subtitle.
here is a picture
