Submit content for CheatsGuru Pokemon Crystal

im new to pokemon crystal. im stuck. ive beaten the first gym, hatched the egg, and i cant think of anything else to do, i also beat the sprout tower people and taught my bellsprout flash. theres a dancing tree blocking the way to the next city past violet city, so i cant get to it. how do i teach my pokemon atacks like cut and surf so i can get past obstacles like trees and rivers????