Nope, that’s the wrong one
The real one you can try is here. Or at least, it will be, in about 20 minutes from this post.
It’s still alpha code, and you still need a Geforce or Radeon (or basically a card that supports ARB_texture_env_dot3) to run it. The new targeting effects are temporary, and the powerup graphics aren’t finished yet, but it’s very nearly complete.
Cas