Hello Lorna,
Memory Maker is a wonderful way to capture your family's magical and memorable Walt Disney World vacation.
After purchasing the Memory Maker, link it to your My Disney Experience account. Once you have done this, add Family & Friends, this will allow you to view and download their photos as well from their MagicBands, Memory Maker card, park admission ticket and even Disney PhotoPass cards.
When you are ready to add the Disney PhotoPass card, "temporary cards," sign in to your My Disney Experience and follow the prompts to Your Memory Maker Photos, from there you will clearly see where to add the Disney PhotoPass ID. Be sure to capture as many moment as you can and don't forget to smile and say, "Mickey!"
I hope your upcoming stay at Walt Disney World is magical and memorable and let me know if I can be of any further pixie dusted assistance.
Amy M*o*