[SOLVED] Installer can't connect

[namtih]

Sorry, I don't have any C# knowledge.
But I've noticed one thing:
I'm using Firefox and I can open the xml file without any problems or further prompts. I've also tried the IE 8 now and there I get a certification warning first, which I have to accept. After an click on "Load this website" it opens the xml file.

So perhaps an certification issue?
You could try to edit the link to http and I would try it again for a first verification.