Not even an FAQ. The interface itself could use some redesigning to make these things more obvious.
Assuming this is to be used by non-techies, no one is going to know what or even where an 'iTunes XML file' is. A "What's this?" link next to the upload button with some sort of tool tip or modal showing where the file can be found will go a long way. I didn't find the "Trouble finding your library?" link at the bottom until after writing this comment.
I was also confused about entering an email. From what it looks like, I either upload my XML file or I enter my email to sign up for updates. It needs to be more clear that it's all one inclusive form. (Or even better, don't require an email. Revisiting beathound.com in a reasonable amount of time should preserve your session and give you a scanning update along with the option to sign up for future alerts.)
