No, the Mac version is Office 2004. There was no 03 For Macintosh. The Mac iterations were Office Macintosh X, in 01, the first release for the new OS, and then Office 04. There is now 08 and I believe a new Office 2011 is either out or on it's way.
What I'm wondering is to what extent the newer 08 and 11 Mac versions are backwards compatible with files created on older PC versions of Office, say Office XP or something.

__________________
You're a daisy if you do.
__________________________________
84 Euro 240D 4spd. 220.5k sold
04 Honda Element AWD
1985 F150 XLT 4x4, 351W with 270k miles, hay hauler
1997 Suzuki Sidekick 4x4
1993 Toyota 4wd Pickup 226K and counting