CSS sprites. Quick job.

I am implementing css sprites and have created the images and already positioned them in the PNG. What is needed next is to implement the background-positions and background-image into the CSS file. The design is already made and currently works. We are however moving to implement image optimization, or also known as css sprites. For someone who has done this before you can make quick cash. Its pretty basic css you just have to have experience with css sprites. My budget is no more than $30 for this.