Http://www.youtube.com/watch?v=5mxvG-UIp9Y&feature=related
This is how to get there. also make sure you have:
-beat red(on top of mount silver)
-head to professor ELM'S labortory
-go to professor OAK and get a starter pokemon from him
-THEN after that, head to Mr. Pokemon's house. He will give you a blue/red orb(depends on what game)
the embedded tower you are looking for is on route 47.
