FWIW ... I see that this question was answered in May 2007:
"Up at the top left of the page, where it says "Logged in as manu08", click on your name. That takes you to your profile. On the left, the third item down is "Options", with a drop down box. Click that arrow, and then click on "View all posts". That gives you every post you've ever made. Also, you can click "View all threads", to show the threads you've started."
But I believe these instructions are no longer applicable. Would someone please update those instructions for me? HOW CAN I search through all my post? Thanks. ... batpark