Is there a way to widen the actual Application Page so its not a strip going down the middle of the page? I haven't figured out a way to change this myself, so if someone can point me in the right direction I'd love it.

I've attached a screen shot to show what I mean. I put green arrows to show the amount of space it squishes into.

Thanks again!

Try adding the following to your page's CSS Stylesheet:

form[name=app] > table {
    width:700px;
}

You can experiment with the width to see which one you prefer. If you want it to stretch the whole length, try out width:100%;