Don't worry, the site is being re-organized and it should be settled shortly.
If you want to find your posts, there's a way to do it easily.
When you log in and go to the forums main page, at the bottom there is a list of everyone who is logged in, and each user's name is a hyperlink to his profile. Click on your own name and in your profile there is an option 'find all posts by this user'.
Enjoy!