Giovanni, the former leader of team rocket, is not a gym leader in this game. He is, however able to be battled in an event involving Celebi. Instead of him, Blue, the rival from R/B/Y and FR/LG is the eighth gym leader. He is at the Cinnabar Islands. If you don't have 7 Kanto gym badges he won't go back to the gym in Viridian City. If you do he will go to the gym and you can go battle him now.
ecruteak city
In her Gym
I did lol Leader Jasmine did
his is doing a poo
depends is it on heartgold or what
you find out in the celebi event, but it deals with Giovanni.
between 30 and 60.(:
yes heart gold and sole silver
hes at seafoam islands in kanto
Silver, the rival from the Gold, Silver and Crystal games has been confirmed as being Giovanni's son through a special event in HeartGold and SoulSilver.
Falkner, the gym leader, has flying type pokemon...if i remember correctly he has a pidgey a pidgeotto and a spearow.
where artacuno is in leafgreen up the ladder.