Do you have a coil spring compressor? Replacing struts can be a dangerous job without the correct tools. As far as a diagram, the best I can tell you is to get a repair manual for your car. This is an involved process, and I can't copy and paste from our online manual. And, for me to try to explaine it via the internet, allows too much room for error.
Regardless, make sure to have the alignment checked after replacing the front struts. If you run into trouble, let me know and I will try to help you.