Lucas and the professor would be at the lake where mesprit lives , but your friend I don't know.
you have to go to lake verity first then go to acuity.
go to snowpoint city ;)
No!
yes
You get someones friend code -Pokemon Master
they will definatly be there if not then the game is stuffed or u have activated an action replay code hope they r there :)
get a pal pad and go to add friend
4941 7759 4313
you have to trade with a friend.
YOU DON'T!You get it from a friend with Diamond version
Your friend-code is loacted in the Pal Pad which you can get from the bottom floor of any Pokemon Center
Just google it or ask a friend