How can i use Trust graphics tablet with my MacBook pro

Hi,

I recently purchased a graphics tablet from Trust.

(http://www.trust.com/21259)

However it doesn't work with my mac. The buttons on the stylus work, and i think pressure sensitivity works too, but

i can't use the stylus to move the cursor.

Is there anything i need to configure to enable the stylus.
Are there any drivers available.