Installing the MAS

[SilverX]

I've got a question, about 000Webhoster or whatever it's called, the nameservers, and File Zilla.
1) - How do you change your name server? I can't figure it out, even after reading the FAQ they have.

2) File Zilla keeps giving me this error:
Response: 530 Login authentication failed
Error: Critical error
Error: Could not connect to server
I entered my password, username, blah blah, but that always happens. Oh yeah; What's the Host supposed to be? I'm confused beyond hope.
And is my username my E-mail or whatever I filled out as my username for 000WebHost?
Because when I try to log in with my username, It gives me an error message. When I log in with my E-mail, it doesn't.

<-Hopelessly confused, -Silver