I need basic coding help

[Moontides]

So, my first problem is is that I can't log into my Filezilla, or at least, it won't connect. It says everything is green and blue, and good, except my password. It won't accept my password. Or at least I think. It says PASS in blue and big, but then right after it says Login Authentication Failed, and "critical error", and "cannot connect to server". My password is right, I double checked it and redid it. It won't connect.

My third error, is that I don't know where the "public_html" file is located. I can't find it. And then, after that, how do I put those files into the "left box"?

http://mysidiaadoptables.com/forum/s...ead.php?t=1663
I am follow that tutorial and talking about Step #11.