John, try checking out your post by clicking on "preview post" before clicking on "Add reply".
* To quote the entire post someone else posted click on the "quote marks" (at top of the each post) - not recommended for long FDK.
* To edit something you've already posted click on "the paper" (also located at the top of post).
* To quote just one line of a previous post, I recommend highlight and copy, and then paste between the quote blocks that pop up when you press the "quote" button below (next to the smilies).
Hope this helps.