there is no hm08 in leaf green
The Hidden Jungle was created on 1990-08-04.
The Hidden Past was created on 1999-08-01.
You have to get the HM (Hidden Move) 08 - "Rock Climb", this HM can be found behind the house on the left hand side of 217 (Mt Coronet to Lake Acuity Lakefront). You cannot use it outside of battle until you defeat Candice in Snowpoint.
Hidden Places was created on 2006-01-28.
You're talking about HM 08 Rock Climb. You get Rock Climb when you get all 8 Kanto Badges. After this, Professor Oak gives this HM to you.
You can't get it on the Wii. You can get it in your Firered or Leafgreen Gameboy cartridge.
Move It was created on 1958-08-29.
After you beat all the gyms, go north of Sunnyshore City and a girl will talk to you; she will give you HM 08, Waterfall.
Hm 08=Dive. You can get it in Mosdeep City in Steven House.
The short answer is no. There is no Dive, HM 08, in Pokemon FireRed.
NO
Move Your Hand was created on 1969-08-09.