I need sp37135 driver for HP Quick Launch Buttons

Support Information:
Device Type: Input Devices (mouse, etc.)
Manufacturer: Hewlett Packard (HP)
Model: nx 7400
Interface: Other
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=456&qa5=9&qa7=1500&dp=2&qm0=nx+7400&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Hewlett+Packard+%28HP%29+Input+Devices+%28mouse% 2C+etc.%29++nx+7400+Windows+XP+Professional+) | Research manufacturer Hewlett Packard (HP) (http://members.driverguide.com/index.php?action=getinfo&companyid=456)