Shopping Cart Button and Product pages are not showing

Hello,

I am using Virtue theme with WordPress 3.8.1 and wp e-commerce plugin. I am facing multiple problems.

First of all, I couldn’t add the Cart button on the Top Bar. Please let me know how can I do that.

Also, the product pages are not showing properly specially the home page.

My current homepage is https://p2solutionsonline.com/freemobiledataplan/shop-smartphones/

But I want to build a homepage just like https://freemobiledataplans.com/ where the prodcts are showin as Grid View.

Can you please let me know how can I proceed with this.

Thanks
PRasun