Start here to learn After Effects: http://adobe.ly/bjBT3P
The flickering that you're referring to is a very basic animation of the opacity of the text layer.
A split-screen result is created by placing one layer on top of another and using masks to determine which parts of the top layer are transparent for the other layer to show through.
These are fundamentals of After Effects, so you really need to follow the link that I gave above so that you can learn these basics.
This is very easy stuff: AE 101-type stuff. Almost no-brainer stuff if you know your AE basics. If you DON'T know your AE basics, you'll have problems. Here's how they're done:
The flickering text can be done by animating the test layers' opacity, either by keyframing it (I'd use Hold keyframes myself) or with an expression.
The split secreen is three duplicated layers masked, scaled and repositioned.
Very easy. But if you're new to AE, you don't want to go there... yet.
So it's just your standard keyframing the opacity? I didn't know if there was a stock or third party plug-in that made it easier... so I guess that was my question. Thanks for the help guys!
Oh, there might be a text animation preset that will do much the same thing, but you'd have to check. I don't know the complete inventory of the standard ones in AE.