She doesn't need any special treatment or training techniques because she's a draft. The same rules should apply to her as the lighter breeds. It will take time, patience, and consitency, but she will be fine if you don't get intimidated by her size and pushy attitude. I don't treat my belgians any different that my quarter horses. They all know what is expected of them, regardless of breed. As for her riding and driving refreshment, if you've never driven before, find a driving mentor who is experienced. The riding part is the same as refreshing a light breed as well, just be prepared that if she was trained to drive before ride, she MIGHT be a little hard on the mouth, but this isn't always the case, she may be very supple and soft.