Barbara, once you have written something and want to edit just click on the more option on the right end of the bar. You have many options there, edit, delete etc. For the picture I suspect it's at your account setting. That can be found at the little arrow beside your login name on the top bar :) I hope this helps.
Carol, I see you found how to post your profile picture, because you have a picture there, Christie was very helpful in answering my questions, thanks Christie. Also if you want to add a saying or quote from Doris under your profile picture you can do that in account settings also.
No problem Barbara :) Glad I could help. Janet has started a How to topic on the Forum information and questions if there are other concerns or questions. That way we can keep all questions in one place and newcomers can seek all answers there