This tutorial will give your image a vintage coloring.
Original & Result:

Step One: Open Photofiltre and the image you wish to colorize.
Step Two: Go to
Adjust, then to
Brightness/Contrast. [Example
HERE.]
Step Three: A pop-up should show up. Set your settings like mine:
HERE.
Step Four: Now go to
Adjust then to
Levels. [Example
HERE.]
Step Five: A pop-up should show up. Set your settings like mine:
HERE.
Step Six: Go to
Adjust, then to
Brightness/Contrast again and set your settings like mine:
HERE.
Extra: If you'd like you can
Sharpen your image by pressing the triangle once. [This will make your image smoother and not so blurry.]
You are now done and should have a similar coloring to the result above.