Ok i've actually purchased the silver pack after i've tried the beta with a free key.
Now my question is simple:
What should i do in order to play the Alpha ,re-download the alpha client or i can just launch it and enter with beta client one on alpha server?
I'm actually totally unknowledged since AA is the first game i play since the beta and to download another client seems the more-logical-but-more-tedious option.
Thanks anticipately for your answer.