This is an ordering problem - your navigation is underneath your content and the clicks don't pass "through" one layer to the next.

Try moving your navigation upwards:

.pagination {
position:relative;
z-index:2;
}

I looked at your slider and am trying to accomplish a similar thing on my drupal site. I'm having an issue adding it to my home page. It works fine in the page view, but won't work when promoted to the front page. Is your slider in a block or made into a view? Any tips would be greatly appreciated.

Thanks,
Jeff