My family was tech savvy enough to have digital cameras, but not savvy enough to upload those photos to websites, etc.
We had a brunch the day after our wedding and I set up an “Upload Your Photos Here” laptop and HUGE sign. A couple of our kindest tech savvy friends helped the uncles and aunts upload and it saved us a lot of time trying to track down photos later.
You could even pull this off at the wedding itself. So grab a laptop, and ask your friends to contribute a few different cords (usb, new iPhone, old iPhone, etc.), write a sign, and get all your pics!