Teach me over TeamViewer how to edit Flash banner I take online and insert my own .as into it

I have no knowledge of flash, neither action script. I had a developer to make me a action script(.as). I want need someone to teach me how to take any flash file i find online(For exemple advertising from any company) and be able to merge it with my .as and then make only one .swf file that would be the ads i took online with my script. I have no knowledge, you will be required to take time to teach me, i think it is easy. I do not want to do any design, or modify any aspect of the original .swf I take, I only want to be able to merge the my .as into the swf and then make one swf file.