I'm having trouble getting the expansion installed on my mac.

I installed the normal game first, and when I went to install the expansion it wouldn't work, it would say there is already a file in this directory.

I uninstalled and reinstalled this time installing Brood War first but it won't let me play the game, it says its not supported by the OS.

Pretty much I can only get SC but now BW

I've looked for solutions but nothing is working. How do I get both SC and BW on my mac?

Okay I got it to work. I reinstalled Brood War and it lets it run this time. Not sure why it works now but not before but whatever, it's working so thats whats important