That's not too difficult.
I clicked on your username, came (in read-only mode, since I'm not you) in your profile, clicked on the "Forum posts" link and saw a list of 3 posts (this one and 2 from December 25). I could read those old posts by clicking on the link in the list.
If you had activated the "Allow other members to mail me" option in your profile I could have mailed you this answer. Now I have to hope you'll be able to find this thread to read it.
Hello everyone. I am a newbie here, and cannot find the way to my old posts/replies to forum posts. I wonder if I have to do it manually, or there is a way to find them in my profile. Thanks for the help.