In the 720p folder, get the files called SW-en-native.sup and ESB-en-native.sup, unless you want the SDH subtitles, in which case you get the ones with SDH in the filename. Grab the README file too if you don't know what to do with them next.

EDIT: to be clear, the "native" subtitles exclude the alien subs, which I assume is what you want. There are also "match" subtitles which are a bit of a gimmick, but if you look at the last screenshot in the first post, you'll see what that looks like. If you prefer that, then download the -match-DeEdv2 sup files instead.