Help and future tutorial

[-[gooey kablooey]-]

I've asked this before but I must ask it once again;
How do you get text above your profile?

I was told last time that to get it up there you must put it in Customization
but when I tried to put some text up there today it appeared but it didn't change sizes.

If you don't know what I'm talking about go to Jeremiah's profile and see where he wrote 'we have past the point of no return...'

That is what I'm trying to do and it won't let me change the size of the font.

If you guys could even put a tutorial up on how to do it so people will know how to do it in the future.
I'm sure most of the members here don't even know they can do it.