Thanks to Reddit user /u/GreatBusinessman, we have a nicely built Wine bottle of Acestream, ready to download.
Grab it here: http://themainframe.ca/acestream-download
Here's a video on how to download and use it... screenshots and directions follow.
Ok, so you've downloaded Acestream (if not, grab it here: http://themainframe.ca/acestream-download)
Once it's downloaded, you'll want to copy it to your /Applications folder.
Now, the first time you run it, you'll want to right-click or CTRL-click it and click open.
Be patient on first run. Once it's working, you'll see this.
Now it's time to find your Acestream stream ID. It's a big long string of characters. You'll want to copy this string.
And flip back to Acestream app and paste it in.
Hit play, and be patient. It may take a while to find peers and start buffering.
There you go!