Need Tablet Help

Can anyone tell me if it is possible to make it so that the amount of pressure I apply with my pen on my tablet will affect the width of the sculpting brush in Blender 2.49 or 2.5. If this is possible please explain to me how to set it up , thank you for the help.

Blender 2.54.
In the sculpt tools panel to the right of the radius and strength setting is an icon of a pointing hand. Select these to enable tablet pressure sensitivity.

Thanks for the help. I did as you said but it is not working, though I am beginning to think it has something to do with Windows 7. I’ll have to check it out in Windows XP .

I was finally able to get it working, apparently the Windows Vista driver works better for my tablet in Windows 7, Thank you again for the help.