Please help me with a wordpress theme?

I downloaded a theme called wellblog on the Internet, but he is not working properly since I installed it!
my problem is with an additional he has on the home page which shows the first image of the post, but aki ta not working: (
it is well along with the images:
http://demo.colorlabsproject.com/?theme=wellblog
but my ta thereby:
http://deusnomeus2.com

Please help me, I have no knowledge whatsoever with php! yet!