How to Know If You Are Missing Information???

<p>So I mailed in my application to penn state on the 28 or 29th (late I know). I had my college board fee waiver along with my transcripts, guidance counselor forms, and teacher recommendation. Today they finally processed the fee waiver so I was able to submit my application. The thing I'm confused about is how do I find out what is missing? Because when I click on the button that says "review application" they have in a yellow box information that I mailed to them already...I'm just really confused to see where I can find the information that the already have. Thanks!</p>