The drivers will be specific for the device. Go to the manufacturers website or reuse the installation CD that came with the mouse.
Hi Anort,
The problem is the laptop came with Vista32bit and Dell hasn't published any Windows 7 drivers for the laptop. And I've long lost the CD that came with the mouse. Tried looking on the MS website for it but that was useless.
The mouse manufacturer website should have them. As Area51reopened said Vista drivers should work if there are no Windows 7 specific drivers available.