Do you have a popup blocker? (I'm presuming that that may be what is happening to you?).
You should just bring up a screen, and be able to put in your names, without any emails, or do anything at all, but type the names in. I suspected, and I may be correct, that the site isn't good with popups. Sorry if you have problems. If you want to, I can put the names in for you, and send you the details?