Have you gone to Outworld and gone to the Tarkatan camp just a guess.

No i tried dat and talked to each of them and nothing worked.

After Shen/Wen tells you to go to outworld and find info about the tarkatan people, you need to go to Outworld to the city of Le Chen (sp?)
There, you will meet Hotaru and be imprisoned for a long time. When you return to Earthrealm, Shen,Wen and the rest of the monks will be gone. If you go back to the Monk Temple, Kung Lao will be there. Once you do a 10-hit combo on him, he will explain everything...

O okay thanks!

hey can u plz give me the coordinates to where Kung Lao is somebody? i can't seem to find him...

*bump*... so somebody know the coordinates? or can u at least be more detailed as to where he is? cuz i don't know what to do next...

"To get Raiden's Staff go to Earthrealm when you ar older (before going to
the last Realm, Edenia, preferably) and go to the big temple to the south ("C-7")
to find Kung Lao. You'll have to do a 10 hit combo on him. When you do, he'll
ask you to find Kai at Outworld, which will be in the Ice Caves. Kai will then
give you Raiden's Staff..."

ok thx, but what if u already went to edenia and beat konquest? does that mean that i can't get the staff? it says "preferably", so is there a way to do it after u beat konquest?