Exit QuoteTracker then extract the patch files into the folder that QuoteTracker is installed in, overwriting any duplicates when prompted. If you're uncomfortable doing that, first copy the entire QuoteTracker folder to a backup location. This way if something goes wrong, you can copy the original files back to the QuoteTracker folder again and be right where you were prior to installing the patch.
After copying the patch files it shouldn't be necessary to restart your computer, but if something doesn't seem to be working right, then try a restart.