You can also get forms at your local courthouse, where you will probably need to file for a Protection from Abuse Order in person. Go to Courthouse Locations for a list of Alabama courts.
A domestic violence organization in your area may also be able to provide you with the necessary forms. Go to AL State and Local Programs to find an organization in your area.
The Alabama Court System does not currently publish custody forms online. Check with the clerk of court to see if standardized custody forms are available in your area.