He's right if you just posted something and nobody has replied, it is not a "New Post" to you...it will be to everybody else
though. Once someone adds something to your thread, it will show up in your
"New Posts" section. If you want to double-check that your thread is still there, you can go to "Todays Posts" which will call it up even if nobody has added info
...assuming it has been less than 24 hours since you originally posted it. This will call up all the posts
from the last 24 hours, whether or not you have already viewed them or new information has been posted to them. This comes in real handy if you read something and can't remember exactly where and want to go back & re-read it.
To do so, click on:
> Quick Links > Today's Posts