Different websites have different ways of sorting torrents. Some torrents have an "S" or "L" heading. Seeders mean people from whom you will download the file from, leechers represent people who are downloading the file. More the people downloading a specific something, slower it will be. More the Seeders mean faster you will get the file.
Some websites have numbers with slashes in-between. 34/7 - 34 are the seeders, 7 are the leechers. You will get this file fast.
While you will get a file like this 137/4073 very slow since there are few uploaders and a loooot of downloaders.
Those movies are great. I've watched Oldboy and the good, the bad...