actually, oddly the archive was asking for a password...
I realized the download didn't finish, it said it was done, but the size only says it's like 200mb. I don't know why it would suddenly start asking for a password though just because it isn't done... just another one of computer mysteries.
But onward, I've re-downloaded this several times, each time it stops around 100mb-300mb and says it's done. I know it's alittle pas 500mb though...