FOSS gamedev and creative worlds

Hello.
I don't know where to put this, so I put it here.

The problem I'm having is that in none of the worlds I created are jungle trees. The blocks are in the creative inventory, and you can place them, but they don't spawn naturally.

Have the jungle trees been removed?

I'm running MineTest 0.4.3 on Ubuntu 12.04.

Yes, jungle trees had been removed.

Oh...
Why were they removed?
Is there any mod that adds them back?

Thanks, I'll try it later.