Aly gave great advice. I really can't add anything except you really need to be conscience at all times of how you treat the dogs. Buster is clearly fighting for alpha status and until you acknowledge this in everything, including greeting him first, letting him out first, feeding him first, etc. the fights will continue. If you accept Buster as the alpha, then so will Ginger!

In our house Dusty challenged his mom for alpha status. It was hard for me to accept since it was his mom, but after I did, harmony reigned.

Best wishes for a harmonous house!