The easiest way that I found to find my posts and threads Ive started was to click on MY NAME (luvTooQuilt) in the tippy top of the page- to the right of the quilting board logo....
It will take you to your profile page ..
Under your avitar you have options to click on..
~ send Private message
~Find latest posts
~Find latest started threads
~ View Article
~view blogs
Click on latest post to see what YOU'VE responded to
Click on find latest started threads to find the threads YOU started
hope this helps