I currently have an application called "winbox.exe" on my desktop which I plan on deleting and restoring from the last backup taken on 01/06/2014. You first need to browse to the VDP File Level Restore webpage:
You will be prompted with a login screen. From what I can determine you need to log into the appliance with a local administrator account of the virtual machine you want to perform a file level restore for. In my case, I'm using the local administrator account for the Windows8 VM:
After you have correctly authenticated you will be asked to select a restore point from which to perform the file level restore from. Select the required restore point and click Mount:
You can now close the Manage mounted backups window and you should see your restore point mounted. Now simply browse to the file that you wish to restore and click Restore selected files:
You now need to specify a destination location to restore the file to. I'm simply going to restore it back to the desktop. Once selected click Restore and click Yes to the popup message:
The restore is submitted and you can monitor the progress via the Monitor Restores view:
Once the restore is completed the file should be in the location you specified.