Thanks for the plugin! I'm not sure if I'm just not using it appropriately but I'm not able to reproduce this too well...
Here's a screenshot the photoshop forum gave me of how he was able to accomplish below. Maybe it will give you more hints about how to accomplish it? It's been the closest thing that I've seen to reproducing it... and it's pretty darn close!
Instead of colorizing to one green, try using a gradient or painting some other colors in there.
If you look at the original, there are some greens and green-blue areas. You also might want to play around with the levels/gamma and curves to make more contrasty.
You might want to also switch to 32-bit color.. which makes glows and blurs pop more.
It's probably simply an image generated using a fractal app like Chaoscope. They offer much more control than AEFlame and render faster...