from what i heard, i think you need to defeat the elite four first, then the Golden Rod train station will be available. This is what i know...
You can not. It is impossible for Heartgold and Soulsilver.
I am not sure if you can.I have Silver and beat all 16 Gyms and never found a way to unlock the Safari Zone.:( Sorry.
wonder mail or on the job bulletin board
You unlock Silver Prints by beating the Frontier Brains in the Battle Frontier in Platinum.
you cant its only in soul silver and heart gold
you need to have zapdos moltres and articuno to unlock a story with whiscash then you can go to silver trench (i think)
somehow get arces then go to the ruins of alph and go into the lab
how do unlock silver sable in spiderman friend or foe
You don't unlock Pokemon you unlock things like different cups and time attack ect. Just not Pokemon
On Pokemon Soul Silver and Pokemon Heart Gold, you have to defeat the Goldenrod City Gym Leader, Whitney, and then she tells you that the construction for the Pokeathlon Dome is complete.
no, groudon is available in soul silver only, so you must trade from soul silver, however if you use cheats, the groudon will not unlock rayquaza.
I hear that you can't because it's an impossible move... but that's all i know