Need Advice

[TheKid]

After reading rajs thread.. [WANTED] Fancy web designers for splash/registration page.. I have been working on something and speaking to raj on how I can improve it, he said there should be a clickable array of thumbnails on the bottom which will expand to screenshots when clicked, and with left and right arrows for scrolling and there should be a login box and it should change to a user info box once logged in.

I need some advice on how I would achieve this in Photoshop or another program, this is what I've come up with so far (im not Photoshop expert but its a start) advice would be greatly appreciated!