The reason there is a delay in posts appearing when you are a newbie is that the first few posts anyone makes are moderated (By a real human!) to make sure that you are neither a Bot or a Spammer.
And especially if you post over a weekend or during the holiday period that process will not necessarily be immediate.
Fear not I am sure you will soon be upgraded to instant posting status by the Pico_Crew
Good to have you on-board and rest assured you will not regret whenever you do purchase a Pico.