Hey
shadow, nice to see you here!!
Well good and bad news I'm afraid buddy. I built a (in my opinion) better version of the fire effects (birth and death) into PE3. However it does not have your custom Electro effect in it. Unfortunately at the moment I cannot add it either, I am on a crappy laptop with no access to Stalker or the SDK.
So you could use it, but would lose your effect. Unless some kind soul could tweak the particle file for you. It is actually really easy to add your effect into PE3, simply tweaking my electro and pointing it at the ball lightning effect in vanilla.
As for using it, well you just would need to add/merge the scripts into Reb, I found it pretty easy to do. Let me know if you need the PE3 files and I'll e-mail them. I'd even be happy to help you tweak the electro effect, but it would all be from memory at the moment, and you would need the SDK.
FYI - Reason I can't help further is my PSU "popped" taking my motherboard with it, and I am trying to RMA & rebuild, etc. Could be a couple more weeks

Edit: In response to Ket's comments, it still is not perfect, but with my tweaked effects and script (I increased the timing) the campfire takes much longer to die out, so you never really see the switch anymore. I agree though it would be better, and simpler if this switch only ever happened at a distance greater than switch_distance for example, that way you would never see it.