Coda slider resize panel help

Can someone help me with this simple issue?
I want the home page slider (templet.biz) to look like this one
http://templatic.com/demos/DigitalBox/
As you can see, it’s the same image (same width and height), but after insertion the photo has 70% of the original.
What do i need to edit?

Excuse my bad English!
Thank you!