You get it in the start I think. :)
NO THERE is no second map in diamond and pearl.(that includes platnium).
On the marking map you can't mark Pokemon but if a Pokemon is roaming it will be represented by a Pokemon face.
There is a map in the Pokemon Diamond/Pearl Guide Book.
use a marking map
There is a map of Mt. Coronet in the Sinnoh region.
You have to visit the battle tower thingy first, then they let you past
Well you have to get into snow points temple thingy and he will be thar :) HAHA! TRICKED YAH!
Text Edit :Advance Text , Thingy , Hexecute Map Editor :Advance Map Just go to Swamperttools.com
No you can not get one
If the question is if there is one, then no.
First of all, you catch Mespirit with the marking map not Alzef. And second, Cressila is the other Pokemon you catch with the marking map.
you need to go to the Pal Park south at the botom of the map