You should be able to find the drivers for your periphials (the webcam and the edge scrolls) through the manufacturer's website, which should be Sony in this case. You can also use Windows Update to download addtional drivers that you might find helpful:
1.Open Windows Update by clicking the Start button . In the search box, type Update, and then, in the list of results, click Windows Update.
2.In the left pane, click Check for updates.
If there are any available updates, click the links to see more information about each update. Windows Update tells you if an update is important, recommended, or optional. Each type of update might include drivers. For more information, see Understanding Windows automatic updating and Automatically get recommended drivers and updates for your hardware.
3.On the Select the updates you want to install page, look for updates for your hardware devices, select the check box for each driver that you want to install, and then click OK.
There might not be any available driver updates.
4.On the Windows Update page, click Install updates If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
Windows Update will tell you if the updates were successfully installed.