Originally we only accepted submissions that had been emailed in. I'd edit and post and then when updates were needed I'd edit and update. I then added the submission wizard to make this easier but found that many authors, while great programmers, lacked a little je ne sais quois when it came to editing and formatting. So, we'd take these submission-wizard-contributed submissions and clean them up, and then authors would update them with their old, unformatted, copy and we'd lose the work we'd done.
So - we decided that once an article was edited it would be locked to casual updates in order to avoid needless repitition of work, and while it's been frustrating for some, it's mean the number of well formatted articles goes up instead of down.
Having said that, there are obviously authors who do have excellent editing skills and these authors have been given the rights to upload and reedit whenever they wish.
I'm sure Sean will review your articles and make things easier.
did you post through the article wizard? I can't see anything recent. Your articles should appear on the CP home page awaiting approval, but only to people having silver+ author reputation. However I don't see it.
BTW: there is a "still composing" or so checkbox; you need to uncheck that when done editing.
If you've sent it by e-mail to CP staff, they need some time to handle it, and only then would it become visible (to all at the same time).
This will only happen if you submit to an article submission site that manually reviews all submissions. The only reason why it is pending is because it is still in queue. You just need to wait. If you have a paid membership, or if you are an author under expert status, then you can expect your articles to be reviewed right away.