you have to find all the seven sages ,beat Cynthia ,alder and the elite four.
At N's castle
Finish Victory Road
There won't be any old Pokemon on Pokemon black and white until you finish the main quest.
Yes.... it's possible i did it with Pokemon platinum... so it's possible with Pokemon black/white too..
Yes they are, once you finish the main story and get the national Dex, you can find lower generation Pokemon
Finish the pokedex and raise all ur Pokemon too the end..i guess. Also don't forget to visit white forest.
finish the pokemon league
Finish the Game and serously those games are so old get black and white
nope [Edit] You get a masterball from Professor Juniper after you finish all 8 Gyms.
i never finished but im pretty sure that's a yes
You cant you can only get the super rod after you have beaten the elite four for the first time
You can't actually trade Pokemon between Pokemon white and Pokemon platinum. The only way to get your Pokemon from Pokemon platinum to white is to use the pokeshifter. The pokeshifter can be found in a lab to the west of white forest (or black city if you are playing Pokemon black). You can get to these places after you finish the main story. When transporting Pokemon using the pokeshifter the Pokemon can't know HM's and if they are holding items the items will be taken from your Pokemon on platinum and placed in your bag also, you have to transport 6 Pokemon at a time. The scientist will tell you about the rules of transporting Pokemon when you get there anyway. Hope this helped!