Please explain a little more. Which old lady? Where do you see her? Does she tell you anything? Details...
There one-time ghosts in the old chateau, but these dont do anything.
You can't you can only see it at celestic town where the old lady shows the picture to you
In solaceon town, go to the old lady's house which is in the east, talk to her and she will give you the seal case.
go to celestic town and then go into that little cave,talk to the old lady inside and she will give you hm surf.
By digging underground
There one-time ghosts in the old chateau, but these dont do anything.
Only if you trade someone from Pokemon Pearl although you can get Dialga in Pokemon Diamond.No,you must trade Palkia from a copy of Pokemon Pearl or Pokemon Platinum.No. However, you can add him as a "seen" Pokemon by talking to the old lady in Celestic Town after beating the Elite Four.no, you can't.
from an old lady on the 5th floor of the lost tower (outside of Solaceon Town)
two Pokemon of the same kind in the daycare or ditto and any Pokemon
You can't you can only see it at celestic town where the old lady shows the picture to you
After you give the Old Charm to the lady in Celestic Town you get Surf
You go into one of the houses below the Galactic warehouse in Veilstone and an old lady gives you a proygon.
In solaceon town, go to the old lady's house which is in the east, talk to her and she will give you the seal case.
Mostly by battling all of the trainers to see palkia go to an old lady in celestia town and she will show you it
hearthome lets you use surf anyou get surf from the old lady in cesitown
go to celestic town and then go into that little cave,talk to the old lady inside and she will give you hm surf.
Pokemon number 150 is Palkia, you can get it on the pokedex by trading, battle a friend or seeing the old lady in the library who shows you a picture of Palkia which is then added to your pokedex.