Interesting, that looks like the host at toprpsites.com is not responding to the request, I'll do some poking around and see if I can figure out whats going on.
ahh some server moves going on this past couple weeks, screenshot server was updated but should be working. I'll check into it today and make sure you have what you need to connect.
I have no idea what the problem on your server is, this should just be a matter of overwrite the files and it should just work. At least it did on my test site and a couple client sites.