Photoshop CC and Targa files

Just thinking of editing one of my older skins in Photoshop CC and found to my horror that the TGA files aren't handled properly - their alpha channels are borked.

Then I remembered - I previously swapped out the targa file format plugin when I used PS before - and luckily Adobe have made the old plugin available...

But it doesn't seem to load in the PS CC version - there's a message in the start-up log that says that it failed to load.

Any idea how I can edit my TGA files? Help!