Zanafor here with a bit of late news. If you haven’t already heard somewhere else, an english patch for Touhou 13: Ten Desires has been released. You can download it by clicking on the link below.
The patcher is pretty self explanatory. Oh, and you’ll need the official 1.00c patch for it to work. You can download it here. Thank the guys at http://www.gensokyo.org/ for the english patch, they did a great job!