Hullo Doocha, welcome to MU and the forum.
You have to have membership to the "Members" group to access the forum topics.
You will be added to the members group when you receive a response email by forum stuff after registering to this forum (wich you already did). so you should check your email account.
Also to get full membership of the PTA and rep-edited charakters you must read and post an "agree" to the MU rules.
I hope this helps, have fun mate