Well, I'm definately not an expert, but hopefully I can be some help.
I had trouble repeating it through shell access (I use Putty), but I just tried in my ftp and got it. I use Filezilla, so you may have to adapt this a bit depending on your program.
When I sign on (through ftp), I'm in the main directory (so I see like, mydomain.com, logs, etc...). Up at the top this is an address bar for "Remote Site" (the server), and I entered .snapshot in there (so it said /.snapshot/) and it came up that way with options for hourly, nightly and weekly.
From there just navigate into the directories and take what you need. It would probably be faster through shell access, but like I said, I had trouble recreating it there, although for whatever reason those directions were clear to me the first time and worked.