Sorry for the double post, but the registration page has changed DRAMATICALLY from what is shown in the pictures.
Edit: I managed to get through it, but I keep getting an error for my password that says パスワードは半角英数字8～32桁で、英字と数字を組み合わせで設定してください。 I tried translating it, but it made no sense.
Another edit: got past that, but now it has two clickable options not shown in your pictures. The middle the your bottom picture is one choice, and the other (I can't copy and paste it) has character that looks like a t with a shield, followed by an inverted v that is longer on the right side, followed by what sort of looks like a fist formed of two Es punching an i, then a + with an a at the bottom, the a has a long tail that goes to the right then curves up with an apostrophe over it. I know, that is a very obtose description and I apologise.
FINAL EDIT: I double checked, and that was the button for "continue with registration" early on. So, I managed to complete my registration. That was rough. If it's not asking too much, could you please update the guide?