You seem to have 2 questions in one thread. First you want to do URL rewriting like chrishlay has said. The second is you say you want to make a cool gridview but your picture is not a grid and looks more like a simple popup box. Please give more exact details. For the gridview stuff, use HTML, CSS and images to make anything on the internet look "cool".
For the visuals, they are using images to make the rounded corners and left, right and bottom borders through CSS, with a dash of HTML (This is what I told you earlier). If you'd view the source you'd be able to look at all of this yourself. Learning from someone else's code is good, it also gives you experience in reading code.
Learn how to use IE Developer Toolbar or Firebug (for Firefox) and there is one for Chrome but I don't remember the name.
So, just to be absolutely clear, URL rewrite and look at the persons code that you want to copy while using the above mentioned tools. I'm only here to help you get your answers, I'm not here to give them to you.