Hey. So, here's another release of X-Emitter v1.7.2 - this is just a bugfix release, so there's nothing new this time around.
The only bug fixed was that setting the 'emitterkill' variable to 1 to destroy the emitter when all of its particles were gone wasn't working. I tweaked the collision emitter, as well. Download X-Emitter V1.7.2 here.