I guess it would be the same as going back to basics. Do you give a potty command when she goes outside? If so, use the same command and place her on the pad every hour or so. When she goes, praise, praise, praise. Maybe even reward her with a treat for the first few weeks of training.
Pads are also usually scented, so the dogs are naturally attracted to them. I believe that's why Gemma knew to use her pads instantly when we brought her home. There's also some smelly liquid stuff you can use that smells like pee basically. You just drop a couple drops on the pad and it's supposed to attract your dog to pee on it. I bought a bottle of it before we brought Gemma home but I never needed to use them since the pads were already scented and Gemma picked up on them right away.
Good luck and let us know how it goes!