Gamenow theme slideshow problem

Hi i am using Gamenow theme and i am able to see small image but fail to see big image.My site is https://www.pakhunt.com.According to game faq

1) Create a new category titled Featured or something similar.
2) In admin, navigate to the Theme Options Panel located under Appearance. Locate the drop-down menu under Featured Category. Select “Featured”.
3) Any posts you want shown in the Featured section, just assign it to the Featured category.

Posts will need to have a thumbnail image assigned to them in order to appear in these 3 spots. To do this, locate the “Custom Fields” section on your Post Edit page and fill in the following information:
Names: thumbnail
Values: the URL to that image

To setup the featured posts section you need to add the following to the Custom Fields on your post page:
Names: thumbnail and featured_thumbnail
Values: url to those images

And i have set all as per theme instructions https://www.wpnow.com/faqs/gamenow.html
But fail to see big image
Here is a screenshot
https://www.pakhunt.com/wp-content/uploads/2012/07/test.jpg
Plz help me in this