Mac OS X doesn’t and will never support NTFS write but this desperate situation isn’t impossible to fix… thank God.
More… the solution is easy!
All you need is to install two small packages: MacFUSE and NTFS-3G.

• Download MacFUSE here, install it.
• The download NTFS-3G, install it and restart after installation.

You’ll be surprised like I was to see the miracle happen after you restart!

Bonus Trick: as a result of this trick, you will be able to modify the Boot Camp disk icon over your desktop… 

Also take a look at this post: Renaming/Hiding Boot Camp Partition

The boot Camp partition (NTFS system file) is, as many of you have noticed, read only.
As a result, you can’t rename it, change its icon, delete a file from it…

• To rename your bootcamp partition, just boot to Windows and rename the Hard Drive from there (from the Windows explorer).
• To hide your bootcamp HD, just change the name of the Windows Hard Drive (see above) but this time, type a dot (.) before the name of the HD.

Example: “.Vista”

This is due to the fact some drivers are missing.

To solve this problem (and some keyboard functions including ejecting a disk), all you have to do is:

1. Boot on Bootcamp
2. Insert Leopard’s DVD once Vista started
3. This will automatically begin installation of the Boot Camp 2.0 drivers