Oh, so even though you deactivated the flame particle texture, the flame image won't go away?

You have to delete the flame.tga file located in your custom folder.

My Computer < Local Disk < Games < Toribash < custom < PTDx < and delete the 'flame.tga' file from there

After you've deleted the flame.tga file from your custom folder, go back in-game and type /dl PTDx, wait for it to say "Download Complete" in the chatlines, and then type /lp 1 PTDx.