Afer a second thought, I am going to suggest you the followin test:
keep both my Pierre_E and Pierre_E2 textures in TDW's material.dat, and embed Rosomaha's smoke_dirt_splash as a new material (but you should resize it to 128 x 128 first, or it will eat too much memory) . Then set the four objectparticles found in the same file to use the following materials:
particula01: Pierre_E2
particula02: Pierre_E
particula03 and particula04: Pierre_E3 (smoke_dirt_splash)
Let me know
out of curiosity was sober smoke screen disabled during yout last tests?