Deathbyfire: The most likely culprit looks to be TMI, but I would need a full list of all mods, including the ones in the actual JAR, to be sure.
Tibbs: Depends on my schedule. I'm in grad school and so don't have much free time - I was only able to release it this weekend because I was home sick from the lab. Next release should be before the full version of Minecraft, though.
DarkClown: Extract the JAR file from the attached ZIP. This forum doesn't allow the naked JAR to be uploaded, only zips.
Riffy: SMP support is coming in version 1.0. If there's enough interest, I suppose I could make it SMP-compatible before I finish the moon dimension.
Mensrea: Vanilla IC2's tesla coil can already target players - I don't think my missile defense lasers need to repeat this functionality. (But yes, solar panels will work better on the moon)