If you have an active subscription, you do not have to pay again! First you'll need to create a profile on your iOS (version 1.2 or above) or Android device. You will be prompted to create a profile on launch. If not, go to the settings menu and tap Create Profile. Then, go to the Roku Channel Store and search for 'Lifetime Movie Club'. Download and open the app and sign in using the email address and password combination you used to create your profile.
You can also access Lifetime Movie Club on your computer at lifetimemovieclub.com.