The purchase code is for the theme not for revolution slider.
Revolution slider plugin is shipped with theme , you can find the rev slider plugin file in framework/plugins folder and pls import the same. Pls follow the same steps that you have used for activating other plugins to activate rev slider . And then import the sample slides which you can find in the Revolution-Slider-instructions folder(main-slider.zip) .
If you want direct support and auto update feature for rev slider then you can buy separate license .
I have the plugin between the included ones with the theme (Image #1). I install it.
I proceed to activate the plugin (Image #3) and got it installed (Image #4).
I dont update the plugin and I do nothing else. But when I go inside the Revolution Slider plugin I get the Image #6 where they say I have my plugin without activation so it does not let me to import any slider neither templates.
You say I have to import it from framework/plugins? But I dont have that inside my downloaded .zip with the theme.