wp-recaptcha install confusion

Maybe I am thick but I have read the instructions for installing wp-recaptcha and no where does it tell me how to add it into contact form7. I saw a post about a pair of shortcodes to add but the guy was confused about what they were for or if they should be changed. Now I am not here to dis the guys who create these plugins but maybe they should have the guy at the corner coffee shop read and try the instructions before putting them in an install doc and thinking the everyone will understand them.

Can anyone help me to understand how to implement this plugin with contact form 7? I don’t mean to be an ass but I get aggravated when it takes me two hours to figure out some of these plugins.

Thanks