Okay, so here's how it works - Everyone reserves a space by making a post. You can "decorate" your space with pictures, slideshows, blinkies, whatever you like. Each time your babe reaches a new milestone you edit your post to include the new information. The milestone they reached, the date they reached it, how old they were when they reached it.
I know I'm very excited about this thread. It'll be a great way to watch all of our Sweet Novembers grow.