Shame the website is down, sometimes I wish I had the Steam version.... I want to play
Honestly, why haven't you switched to Steam?
Once the Steam version of KSP is updated, it's not encrypted; So simply copy+paste the folder, an you can play without Steam knowing, or launch multiply versions if you so wish.
In stead you got to wait, for the store an re-download 350+ MB file, unpack it, then re-set it up.
Mine, Steam downloads a 5-10MB update file, and I am good to go.
Now that the release is official, I am free from my NDA.
Here is my Falcon craft.
With the extra fuel, it makes it much more versatile, an can achieve orbit, descend, and even achieve orbit a second time.
Also RTG powered, to lower part count, an make life simpler.
I have large, more powerful SSTO design's in the pipeline, just got side tracked today, re-installing windows 7.