reducing size of icons but keeping each centered to the text below it.

Hi,

i need some help reducing the size of each the icons at the bottom of the page by 1/2 (but keeping them centered to the text below them)
- changes - http://monosnap.com/image/13rsd9W3X71jomnZJNwpNdU0To1Mp3
Domain: http://tinyurl.com/qdyvodl

Support access is open

Thanks

tom