alternately you can save by not getting the CD shipped
when ordering the photopass CD, you will have to choose "delivery method"
it will either be "CD" or "download" (don't remember the exact phrasing)
if you choose download, you will not be charged the $15 for shipping.
you will receive an email (if a valid email has been provided) within 48 hours saying that your download is ready
there might be download links or not inside this email
just go back to your photopass account, log in, and on the main page (at the bottom) you will see the download links.
there will be one zip file per 150Mo of data, so you might get a large number of files to download.
each of these zip files will contain the copyright release file too
the zip files will be avalaible for download for a period of 10 days
Still, even if it saves money, I would only advise the download method if you have a reliable high speed internet at home, for these are rather big files and may be a PITA to download on a slow connection
You'll also need to feel confident around a computer, if you're currentely reading "computers for dummies" I suggest going for the shipping method (no offense meant to anyone reading those yellow books

)