How do i edit a post?

Click on the original post, if you're logged in there will be a button at the bottom that says EDIT, it'll bring you back into your post and you can change whatever you want.  I have noticed though sometimes it's there sometimes it isn't... I dunno if there's a time limit after it's posted to be edited.

Also, after you do an edit, the post is held until a moderator releases it.

and don't be annoying like I was the other day when I editted three times lol

If you would rather that your original post stays active, you can reply to your own post with "correction", or something similar in the subject line.

I thought about doing that on some of my goof posts that needed a line or two excised but I didn't want to clutter the boards.  See, I'm thinking about the scroll, DC, all the time...

within the same thread, and don't do it on a regular basis, (correct me if I'm wrong DC) I don't think it really effects anything. If you were to put up a new post, instead of replying to your own, then it would push the bottom post off of the first page, and that might tend to piss somebody off.