little_polar_bear, I'm a bit confused because I haven't had my coffee yet, so excuse me if I got your question wrong
But on the newer version of Word, you can save your files to work on the old version. I'm not sure if we have the same versions, but in Word 2007 you click Save as -> Word 97-2003 Document.
Hope it works
Edit: Buuuuut, if you still want the new version, torrents are the way to go
I'm not sure if you're familiar with torrents, though? (Attn! I am not asking people to break the law - do it at your own risk
)