The HM Strengt: You get it from Riley on Iron Island
The HM Whirlpool is not obtainable in Pokemon Platinum, for there is no use for it during gameplay.
Dig is not a HM in Pokemon Platinum but a TM, it can be found in the ruin maniacs cave.
in a Pokemon center
Select the Hm hit use and select Pokemon
In Pokemon Platinum, Flash is a TM.
you can get it in pokemon platinum!
a guy in a house on the north side of the battle institute in nimbassa city gives you hm 04 streangth HOPE THIS HELPS :)
its not an HM anymore you have to find it.
Surf is HM #3. :-)
its a hm and its called strength
at the city of the Pokemon league
Get the HM Surf then teach it to a pokemon.