First of all if you want to use MALu torrent plugin you need a software to download torrent files. While any torrent app will do, some of the more advanced function of this plugin works only with uTorrent, so you might want to get that from [here]. uTorrent is lightweight, compatible with most if not all private trackers and overall one of the best ones you can find.
Setting RSS feedsTokyoToshokan], [AnimeSuki] and [Orzbot]. Orzbot and TokyoToshokan also have a distinction about RAW episodes and Subbed ones (and in the case of TT also Non-English subs and Hentai), so you can decide if MALu should search on those categories as well or not.
Set download folders (uTorrent only)
The other possible option is to have MALu download each anime in its own folder (if set) and those without a set folder will be downloaded in the General Folder. For help about setting anime folders you can read File/Folder Tools