Hi!
I guess you are talking about changing the calendar plugin so that it displays a Facebook share button alongside the event? I can do this for you easily - I have 15 years of experience building websites, 5-6 years with Wordpress/PHP, and besides I am a nice guy with good communication skills. So please let me do this for you :)
Best regards,
Haakon Sundaune
Oslo, Norway (but for the moment residing in Ploubazlanec, pas loin de St. Malô :)