Please tell me step by step how to install Live Cam

I try to install the live camera (which i bought today) but I cant. I do something wrong. What exactly do i need to do in order to eventually install it? I have my FTP ready and I am in the public_html/modules
I have in front of me the rms3.5.1, the rms3.5.2-rms7.0 and the src... Do I need to install the free version in order to install the one I paid?
I read somewhere at the forum that the insstall of live cam its easy and that thepaid versio see more is self installed what canI do to make it happen.
It appears that I really can not grasp the issue. Ehare can I find a step my step proccess in order to install the live cam?

Thanks in advance

Pan