zip has been updated, you can now specify the textures that will be applyed to the three diferent glow types via a table entry betweem the scor and the (old nebula) trails section
$Thruster Bitmap 1: normal normal
$Thruster Bitmap 1a: normal afterburner
$Thruster Bitmap 2: beam normal
$Thruster Bitmap 2a: beam afterburner
$Thruster Bitmap 3: thrid glow normal
$Thruster Bitmap 3a: thrid glow afterburner
thrid glow is sort of like the normal glow but it is always on, ie it doesn fade when they point away from you.
these are all optional, they will get set to what they are normaly if you don't enter them.
I will work on disableing them all together if desired, and setting factors for each type