Welcome to Community Fred.
Nice to be out of the stone-age? Nice to be able to go to a café for pizza, flapjacks and hot chocolate and use wi-fi to keep in touch?
To keep in touch with everything that's going on in Community use the yellow Browse tab top left and you'll get to all the main posting places. Blue Start a Topic button top left of the list of posts for the main forums is for when you want to post a question.
If your question is about your TalkTalk service then navigate via Browse to Help with your TalkTalk Service and select an appropriate forum.