I've seen these kinds of .. animation I'm guessing
in a lot of graphic designing.
I think it's pretty cool and I would like to learn how to do it.
Is there a tutorial or .. something?

I'm pretty sure that's an effect called 'Backlight.'

Oh, okay then.
But does anyone know a tutorial for making one?
I use Photoshop 7 and ImageReady 7.

Er. Sorry. Do you have Animation Shop? Backlight is part of the text effects from Animation Shop.

..... Aww man, I don't have Animation Shop.
This sucks.
So I can't make that unless I have Animation Shop?

I'm not exactly sure if other free animation programs have Backlight as an effect, but you can google 'free animation programs,' and I'm sure you could find some that you could use as a substitution. I believe Animation Shop is $39.