why I cant find my homepage?

Sobers, do you see this under the chat icon at the top?

??????? You have no new messages
??????? Edit Profile
??????? My Page
??????? My Threads
??????? Post Since Last Visit ( 304 )
??????? Unanswered Post

Please click the third link, "My Page" in the member's area.

Or else, click on your screen name. It will go to your homepage and from there you can see the link to your posts done in the forums.

And if you want to view your posts directly, click on the "posts" number under your id.