Help

[Tim45]

As you can tell, I'm new here. I am trying to figure out what I did wrong. I was trying to upload a banner to the header of my website when I started getting errors. I uploaded some back up files and was able to get the website to at least show up but now I have a bunch of n's on the page. I'm not sure where to begin my search for the problem. someone said its how the php uses the "/n" in the script but I have looked at the pages I was trying to edit but don't see anything obvious, like I say, I uploaded back up files of the pages I was trying to edit. here is the website www.allgamecheats.info have a look and please tell me where to begin.

Thanks