Some problems with configuration

I am a non-programer and having a few problems setting up my site at http://sftbs.info/ I would like a way to either remove the slider with the tiger picture from the static front page so that it only shows the road picture - Or replace the tiger picture with other pictures. I did not see any instructions in the documentation on how to do this. Or perhaps I just missed it, or don't understand where to find the information. Thank you for any help you can give. Janyce