The same happened to me. The page is badly formatted.
The result, that the boxes into which you need to type your personal details are the same colour as the background, hence you can't see them.
If you click just after the first line on the page (first name i think) a cursor will appear, from then on it's just a matter of tabbing down the page.
It did look like a bit of an ingenuity test to me. I wonder how many will give up in frustration at this point?