I wasn't sure about any of that, just stumbling through with what I could find on the internet
Odd though, you'd think that they would have support for NTFS by now.
I think BC is right in that it has to do with patents by microsoft.
And actually I should clarify on a few points:
Mac OS X can READ NTFS without issue. However, it cannot write to NTFS (likely for the same reason BC mentioned).
More confusing though is the fact that Microsoft doesn't support reading HFS+ Partitions, when you can do so without having to pay for patent infringements. In fact, you can download an extension for Vista/7 that allow you to read and write to HFS+ partitions. I did that on my Windows 7 machine and it works great.
hotelgirl: I'm glad you got it working. Since it worked out the box it must have been FAT formatted from the get-go. Thanks for letting us know it worked!