The current version of Terranim8or does not support the settings required to see the fire in the workspace (actually, you won't see anything!). The fire particles can be seen only in wire view. Never mind, save the file, then open it and render the fire animation in Anim8or! Customization: change the fire particle size in Anim8or, change the emissive color,

Here's a tut to create a perfect-looking particle trail:
1. Create a normal particle trail with your own specs, can be done with 6.6.1 or 7Aplha. Doesn't matter if you make the particles face camera or make them face nothing, but certainly not anything else!!

2. Go in anim8or to the object that is the particle. Usually defined as "Tan8dummy".

3. Make a plane cube, create a new texture, and take as transmap the Tan8fire, which is delivered with the fire plugin.(ofcourse set it to "darken".) Now set Diffuse, Ambient and Specular to 0, and Emissive to 10, and trans to 0.01 . apply it to the plane cube.