edit some features in my website

I have a website here : www.beatcourse.com. I need someone who can do following tasks: +) I sell online tutorials for students, so the shipping address and quantity isn't important. Hence, I want to delete these things in cart.tpl. +) When customers click on 'checkout' button, I want to direct them to Paypal, and they don't need to enter shipping address or anything else. +) Edit the size of product image on homepage and on category. +) Customize 'Review' part in [login to view URL] +) Delete reward, coupon, or affiliate on my website You can visit my website to see what you need to do.