Ah, I think those were generated via LordHavoc's LHFire, weren't they?
Mega made them, I know he used some program but I have no clue which one.
In the meanwhile, I've been messing around with particles: I've replaced the jumpgate
flare with a real vortex
![Cheesy :D](http://osirion.org/forum/Smileys/default/cheesy.gif)
, the yellow blob in front of the jumpgate is a mine I blew up.