you dont
you do not find dialga in Pokemon pearl
you find dialga in mount coronet
Trade with Pokemon Pearl or Pokemon Platinum
you cant
no, dialga is in pokemon diamond. PALKIA is the one in pokemon pearl
You can't without cheating.
you need to trade for them
No, not unless you trade a dialga to pearl
Well I believe you find them at the pillar..... :)
if you own diamond you find Dialga if you own pearl you find Palkia
You can catch Palkia in Pearl and tranfer Dialga to pearl from diamond.
In Pokémon Pearl, you can only obtain Dialga by trading it from Diamond, Platinum, HeartGold or SoulSilver.