If you load up your own main page, at the bottom right of each of your posts there should be an "Edit" link and a "Delete" link.
The numbers at the top are the article's stats, broken out by category:
Page Views:
- Home: How many times your main blog page was viewed, while this article was on it.
- Selected: How many times this specific article was viewed (generally by clicking on it from the Forums or a sidebar link or in order to view the comments).
- Channel: I'm not really sure about this one. It has to do with what category your article is in, though. (This article, for example, is on the "Welcome" channel.)
Replies: is how many replies there are to your article. If I'm the first reply, it should now be "1" instead of "0".
Points: is the total number of points that this article has received so far. Generally it's 1 per Selected page view, 0.1 per Home page view, 1 per comment, 1 for each time the article was rated "Interesting", and 2 for each time it was rated "Insightful".