Keyboard_Filter_01 in Other devices

I have installed windows XP Professional in my system along with all the drivers from my system manufacturer site, but Keyboard_Filter_01 is displayed as Other devices under hidden devices even after installing Synaptics Pointing Device software. I have checked out its properties and it says it is not digitally signed. I don't think i have missed anything, still let me know what can i do to fix this?

Have you tried updating its driver from there?? I mean simply right click on it, select update and follow the further simply instruction for updating the driver. I guess once its driver will get updated it will appear in device manager rather than Other devices under hidden devices.