I know, hence my reply to mYself.
I'd rather compile from source, and since I'm not yet fully comfortable with
that,
I tried Pidgin first. After finding a server address to write down, it
worked.
I have yet to make another account and try the audio+video.
So, I'm not giving up, I was just venting off my frustration.
Skype is temporary.
I was frustrated because it seemed to work just right, then when trying to
set up an account for someone else, it didn't work.
And from there, not even my first account worked. Nothing worked.
And there wasn't enough feedback from Jitsi for me to clearly understand
what's going on.
Even the Mac version of Jitsi was not working well (or there wasn't enough
feedback) for account creation,
so that's another reason to feel frustrated.
Specially at the crucial moment when it's supposed to convince other users.
It should be much more accessible.
Thanks for the XMPP explanation, and Firefox Hello.