I'm having a small problem with a mod i'm trying to make, a problem with loading the mod. As in I can run the game ok, but it does not show up in the buy menu. Quite a problem >_>

I'll upload it now, so if anyone can help, it would e greatly appreciated.

Oh, and could anyone give us a hint on how to add helmets to actors, I sprited quite a nice one

Just look at the Coalition soldier.

Thanks, I'll be sure to look into that (vectors start with the bottom left pixel, correct?), but any help on the main problem?

no, not from the bottom left corner, from the spriteoffset, which it set correctly (ie so it's in the center) by creating a vector with the x and y components equal to the x and y dimensions of the sprite / -2
then, +y is down and +x is right for all vectors.