This just means you have at the very least unlocked each ability. You don't have to invest any further into the talent tree than that. So, if you're looking at your upgrades page, which you can get to by pressing
, you should have everything from the very top row unlocked. It's the row I've pointed to in the screenshot below (note that in the screenshot I do not have everything unlocked when it was taken -- all of yours should be colored in):
I'm also slightly questioning if you need the four right columns. They're not really "abilities" you can equip and use, but rather upgrades to health and things. I had them at the time of unlocking, because I didn't really consider it at the time, but if anyone can verify if you do or do not need them, that would be much appreciated, and I will update my image and solution accordingly with proper credit (NOTE
: Thank you to dalagar111
, who has confirmed that you do need the first node of the last four columns).
Remember, you can re-spec at any time. If you get well into the game and realize you haven't done this, just remove a few upgrades from other classes until you have enough points to unlock the ones you need. You can re-spec it however you like once you've unlocked the achievement.
To upgrade these, obviously you need to be earning Karma and leveling up, and not all of the trees are available from the get-go. I didn't earn enough Karma and upgrade points until probably about halfway through the game, give or take, just to give you an idea. Hope this helps