Your Tar Valon account should be the only one you need to post on the forums. You just have not been authorized yet is my guess.
The membership manual will be really useful - I have found myself returning there often whenever I have questions. Sometimes I can't find an answer and so I will PM...
Hey Almira! Just dropping by to see if I could help with anything! Please let me know I would happy to answer any questions or show you around!
If you want to get a feel for the process here it really helps to go through the membership manual in the Library!
Welcome Almira! I am also doing a re-read of WoT before I read the Memory of Light! Eeek. I'm so excited to get there. Right now I am getting towards the end of KoD which is book 11 I think.