Could someone teach me how to do this flashy thingy in ImageReady?

And if it could be step by step and easy to understand, that'd be awesome.
The girl who explained it to me did it the really super hard way, and I got confused.

And if it could be step by step and easy to understand, that'd be awesome.
The girl who explained it to me did it the really super hard way, and I got confused.
