grease is for the o-rings in your inline reg and your low pressure reg.
The inline reg is the the one which your macroline goes into, it is infront of the pistol grip, it is in 2 parts, you need to grease the spring (etek2/08+) / washer stack (ego07 and older). Eclipse says you can use vaseline for this.
The low pressure reg is the pointy bit below the barrel, grease the o-ring there.
use the eclipse oil on the bolt o-rings and the 2 of the 3 rammer o-rings.
the bolt is the black piece at the top and rear of the gun, lift up the silver cap until it stops, then slide the bolt out backwards.
The rammer is underneath the cap at the very rear of the gun just above the pistol grip, unscrew the cap and pop out the rammer.
check your manual here but im pretty sure its the front and back o-rings but not the centre that need a tiny spot of oil.
also, remember before doing any work on your gun make sure you have de-gassed it. Egos and eteks store an extra shot in the gun after the tank has been removed, simply turn off the BBS (ego) and fire it off, or just out the etek into fire mode (flashing single red light) and tap it off.
hope that helps