Be careful how much you push your daughter to do things at home. For some kids it works really well...for some it backfires. If she is not wanting to do strength and conditioning at home, it may turn into a chore. Gymnastics must be fun. Many everyday activities can benefit gymnastics. For expample, riding your bike is great leg exercise and playing on the monkey bars is great for arm strength. Encourage everyday activities such as these.
Conditioning at home is usually something for team kids, this is for the reasons above. A home conditioning program should come from the coach...sometimes it is helpful if the coach is the coach and the parent is the parent. Talk to your child's coach and get some help writing the program and motivating your child to do it. A home conditioning program should not take more than 15 minutes at the begining stages. It must be closely monitored. A great way to do this is to set aside a special time when you and your daughter workout together (no you don't have to do the same exercises she is).