Webpage coding question

Hello,

I am trying my first webpage. I think this is probably not the best place to ask, but honestly I dont know where to find help. I have been trying to build a site that I was told was made with Front page. I have everything done but I cant figure out what to do to make the images that form the L shaped blue band. Can someone help by chance? Thank you for reading this. Respectfully.
http://www.custometalrestoration.com/metal-restoration.htm
Jimmy.