After Burner On Mig 25

Hello All! Im in the finishing stages of creation on my Mig 25RBV in FSDS V2.24. Im also trying to make a nice after burner effect that is connected to throttle input. I can't seem to find any tutorials on making this happen however. This is the first model I've came this far with, being that im not very good at texturing things. I would really like to get the after burner working too, I think it would add a nice touch. I've linked to a screen shot showing the incomplete after burner. Thanks
http://www.geocities.com/von_schleich/grab_784.jpg
http://www.geocities.com/von_schleich/grab_784.jpg