[Edit] just realised your question was asked on Feb 17th and it is now May, oh well maybe you still need help.

I assume you've created the plane and have the animated texture working within 3D Studio, but then when you import it to Unity it doesn't play.

Here is what you shoud do (assuming you havn't already.

• Place your Plane into the scene (or create a new Plane via Game Object > Create Other > Plane)

• Click on your plane and go to 'Mesh renderer' in the Inspector Window, then go to Materials and where it says 'Element 0' press the arrow to open a dropdown menu and select your Animated Texture (or simply drag the texture into this field). This assigns the texture to the plane.

• It's a good idea to change the shader of the texture to Self-Illumin/Dissuse as this means that the texture generates light and will be coreectly visable (though this is only a personal preference)

• Next you will need a script to tell the animation to play and when to play it, here is an example here:

  function Start () { // play the cutscene renderer.material.mainTexture.Play (); }

Assign this script to the Plane that the texture is applied to, That will simply play the animation straight away as you start playing.

Hope that helps.