You can clone with
HTTPS or Subversion.
When we upload image and drop the code it in description. For example, :image:`201306/abcd_1.png: Its compiled to http://scipy-central.org/media/images/201306/abcd_1.png
The problem here is, we can't change the domain name or the entire URL dynamically once its compiled. So, if we change our domain name, all submissions images are not going to work. Since, on localhost, the domain name is different obviously, we can't see images.
Files to be looked into: