You already started this event but here is how you finish it:
Wisdom 1: Gaeus Take Bud to the Luon Highway and talk to the hippo-like creature(Boink). Have him teleport you to the fork and keep going right to find Gaeus.
Wisdom 2: Tote Take Bud to Lake Kilma and head to the cliff to find Tote the turtle.
Wisdom 3: Rosiotti Take Bud to the Jungle and use the psychic service to go to the Forest Ruins. Go up from that screen to get to Rosiotti.
Wisdom 4: Pokiehl You already did this one.
Wisdom 5: Olbohn Take Bud to Underworld and touch the stone. Go left, upper right, right, up, up, upper right, lower left and far right. Go in the door to get to Olbohn. To get back out talk to the Shadole and have it bring you to the entrance. Talk to the Shadole there to have him take you to the surface.
Wisdom 6: Selva Take Bud to Gato Grottoes. If you have talked to the other 5 Wisdoms, Selva will be at the fork right before the Temple of Healing.
Bring Bud back home to end this event.
Upon Completion: Return home, talk to Lil' Cactus, go downstairs (watch him write the Event on the leaf), and go back upstairs to save your game before continuing.