Does it have to be CS ?
Plenty of other cheaper and even free applications quite capable of doing what CS does.
Checkout
www.snapfiles.com on the free tab (top right) for a pile of apps, Gimp, Serif, Pixela,
For much cheaper shareware or commercial apps try Paintshop Pro 10 or 11. Google is your friend.
There are just so many variations out there if you can't get one app to resolve your problem there is always another.
I've been using Paint Shop Pro 6 for years, relatively simple and fast for my motorsport photographic editting.
Don't get trapped by the big price, big name syndrome, there are plenty of options.