FreeGameDev

Could someone please release a compiled version of the latest git revision of Supertux including the editor for Windows XP, At first I pestered my brother to get it, (this was back when tux still used subversion and 0.3.1 wasn't released yet) but the four times he tried it he couldn't get it to work. I asked him to try to get the latest revision recently, but again he could not do it. I REALLY want to use it, but I need someone to compile it along with the editor.

read this topic: viewtopic.php?f=67&t=2777 it has an installer for windows, unfortunately, I think it only has the game and not the editor, but at least that is an improvement from 3.3.
If you really have to have the editor, you can use the 3.3 version (you might have to downgrade the game to 3.3 first though). this wiki page would have something for that. https://supertux.lethargik.org/wiki/Download/Unstable.
as your finale option, you can use GIT(which it seems like you already tried) https://supertux.lethargik.org/wiki/Download/Git