Yes, but first, in white, you must defeat the elite 4.
yes.though of course you cannot trade or battle with Pokemon from the Unova Region as they are new, and Pokemon Pearl will not recognize them.
There is no Battle Frontier in Pokemon Diamond and Pearl. Only the Battle Tower.
Dialga is # 149 in the pearl pokedex
there is no battle frontier in Pokemon pearl,but there is a battle tower. you can go there after you beat the elite 4
Yes, Pokemon Diamond and Pearl's region name is Sinnoh Region.
#114 in Pokemon pearls Sinnoh pokedex in Unown. But in the National pokedex it is Tangela.
you have your battle mode set to "set"
there is no region after sinnoh in Pokemon diamond and Pokemon pearl.
battle battle battle battle battle battle
There is no Trainer Tower in Pokemon Pearl. It is only present in Pokemon Leafgreen and Firered and Pokemon Emerald. There is however, a Battle Tower in Pokemon Pearl which is basically the same as the battle towers in Pokemon Ruby, Sapphire, and Emerald.
Nope You can't the only way to get Pokemon in Pokemon Battle Revolution is if you have Pokemon diamond and Pokemon pearl (and maybe Pokemon platinum)
you battle her at stark mountain