crafty cart configuration

I try to set up a e-store by crafty cart and WP-ecommerce. I run into problems:
1. couldn’t configure the shopping cart shown on the sidebar navigation area as demo shown
2. couldn’t configure the short option words at the end of pressed “add to cart” button
3. couldn’t add multiple photos after click a photo from the main product page.
4. when I click check out tab, contact information form is too wide to display
I am very new to coding, please help.