what this program does is allow you to read/write to the drive.

first thing to do is download and install
macfuse - Google Code
the program is less than 7mb big.

after that is done, download and install
NTFS-3G for Mac OS X

after that, restart your machine, plug in your drive, and enjoy!

you can choose either the ublio or stable version.
according to the users manual, the ublio one is a tiny bit more risky in that if you dont properly unmount your hdd, or if there is a power loss, you may damage your files

however, the ublio one is much faster, about twenty times if you are using the hdd over usb.

the stable one provides more safety in case of an accident