Search time is same as always.
(1.) Trunks has lost his Time Capsule. When you find it, Trunks will give you 500 credits or a level 2 saibaman. (You can find it on Planet Earth)
(2.) Bulma has lost her hover bike. When you find it you will get 500 Credits. (You can find it on Planet Namek.)
(1.) Defeat the Saiyan Elite but don't steal anything. REWARD=5.000 credits.
Now the only way to get the Z-sword is to defeat Nappa and to steal it.
The only way to get Janemba's Sword is to defeat Goku.