Newbie to ActionScript (Flash MX 2004)

Hello

Well. As the title says I am very new to flash actionscript in MX 2004. I dont know what people are talking about when they type in all these functions, and other things. I need clarifiction or a tutorial on what this all is. I follow the tutorials that ask you to cut and paste the scripts but I dont know how to change them so they work correctly.

Regards,
SchoolKid