I try to install N-13 (that looks great) but the installation stops in step 2. The step 1 succeeded but after filling in name/password and mail, the button "continue" open the "install button" but this one doesn't work. Nothing appens.
In fact I find a solution by myself. After having push "install" button without any result, I copied/paste the url of the adresse bar, finishing by "?step=2" and replace it by the same adresse with "?step=3" at the end. This worked. Cool !