O2 sensors..how to tell is it right?

[EuroGSTSpyder]

as some of you may have sen before..I have four brand new sensors for whats supposedly a EVO III.
Now two of them have one black wire in it...and two of them has two wires..one blu and one white? Is this something that is on a 1G Eclipse or not?

 

[Sk8er07999]

On the sensors with one wire, the wire is just the signal wire back to the computer sensor is grounded through the exhause system. The sensors with two wires are just the same. one goes to the computer the other is the ground wire. Not familiar with 1gs so I don't know if that helped or not.