Personally, I had all kinds of problems. First, you HAVE to use Acrobat reader 6. Which I downloaded and installed. I don't like this version - its bloated and the interface feels more clumsy. And considering I have a full version of acrobat 5 I really don't need it. But I trundled on in intereted of exploring DTRPG.
Gave them some fake information, as I don't consider Adobe or Microsoft (the people handling this stuff) as being above selling your info for profit. Finally got all signed up and registered and I downloaded the file. The first time the link up and died, and I had to go back in from the beginning. Second time I got the download, but after I got the file down I had to sign in again to prove I was allowed to look at a file on my own computer. It started to open, then shot another error message at me saying that I'd need to download it again. I uninstalled Acrobat 6 and deleted the file.
I wonder, would it be morally wrong to download a DRM-free PDF from an unligitimate source, if the PDF is available for free? I don't want to swipe anything, I'd just like to see the PDF as a real PDF, not one encumbered by spyware.