Is there a way to update the game without using Island Rum?

[TNTComics]

I can no longer run the game on my iMac through Island Rum (Build 091320191); I continually get a message saying "Can not find NCLauncher!" I can launch the game from the CoH app, but it keeps telling me the game is the wrong version. Rescanning the files through Island Rum makes it "processing files" but no update is downloaded. Is there some other way to force the download of the new game version so I can play on my iMac again?