Help with senior picture background

I am trying to meet a deadline friday to turn in a picture for the yearbook, and my senior photographer didn't shoot any pictures with a background that fits the yearbook guidelines, which state the background must be a solid color such as blue, grey, etc. So I seriously need help maybe editing the background of this digital photo so I can get a copy printed off and turned in Friday. Any help would be tremendously appreciated!!

Thanks

First, double click on the background layer in the layers palette to 'float' the layer, it will now be called 'layer 0'
Next, you need to make a selection of the brickwork behind the figure in order to remove the background. This will probably be easiest using quick mask (Press Q to enter quick mask mode, and carefully paint with 100% black around the figure. Press Q again to leave quick mask mode and show the selection outline) When you are satisfied with the selection, it could be a good idea to feather it slightly (Select > Feather > Feather radius a couple of pixels)
Next, press the Delete key to get rid of the bricks.
Then, press CTRL + D to de-select
Finally, create a new layer, drag it below Layer 0, and fill it with the colour of your choice.