QUOTE(Zorbius @ Aug 10 2009, 09:01)

So in other words, first I upload the gallery in a zip file, and only after that can I upload a torrent file for this same gallery?
No. You only upload the .torrent file. You create the .torrent file itself using a torrent client, based on an offline file or directory on your computer. (To create a .torrent file in uTorrent: File -> Create New Torrent...) Once uploaded, you download the "Personalized Torrent (Just For You - this makes sure to record your stats)" and start seeding.
QUOTE(Zorbius @ Aug 10 2009, 09:01)

So if I want to limit the download to EH members, I take the personalized one?
You should take the personalized one only, because special benefits apply only to your EH account. This doesn't mean it's exclusive to EH members only.
Example: I go to your gallery with a torrent uploaded. I download the "Personalized Torrent (Just For You - this makes sure to record your stats)", because I can get seedmins, GP for completions, and whatever stats that appear on the EHTracker stats under My Home.
As for limiting downloaders, you don't have much control of members distributing the torrent file, but only members can view the torrent page of any gallery. (I logged out and checked)