"Indeed with AW now not only not supported but not available in any form I would advise any AW user to make a safety copy in case of some sort of disaster - zip it and put it on your iDisk, or send a copy of the CD to a friend to hold. If your house burns down the insurance would replace your Mac, but nothing would replace AppleWorks.
While Apple has declared EOL for AppleWorks, that does not leave it 'unsupporterd' (witness this forum and others) or 'not available in any form' (see Hardcore Mac, ebay, etc.), although eventually, that is likely to be the case. That said,having a backup copy of the AppleWorks 6 folder on a CD stored off-site is good advice.
OTOH, if your AppleWorks documents are all on your Mac when your house burns down, taking the Mac with it, you won't have much need for a replacement copy of AppleWorks. Back up the files off-site too, if they're important.
Regards,
Barry