Let's not bash him for paying the fee currently, shall we? It is said and done. I just hope OP has learned his lesson for next time; that ransoms shouldn't under any circumstances be paid.
Have you tried running the executable through the command line as mentioned
here?
To do this, put the executable in your C drive. Then open a new Command Prompt window, make sure it is in the C drive (if not, you can navigate to it from folders by typing
cd / or go to it from a different directory by typing
C:) and type the command exactly as it is seen on that post. Be sure to wrap the RSA key given in quotes.
This will also only work with the original strand of CryptoLocker I believe. If you got infected with a different strand then I have no ideas.