Installing and Activating for dummies

I am only able to follow the instructions for downloading and installing framemarket up to step 3. Then I simply don't understand the terminology being used. I am running the marketpress and simplemarket on a simple wordpress site, but this is far more complicated.

Is there a step by step video that tells me where to look, where to click, what to type? That is the only way I was able to get Wordpress running on my MAC. Again, I can read the instructions, but I don't understand the terminology.

Many Thanks!