To "get in" type #getrealdiapers into your search bar. Then you should see all the posts that have that hash tag. It goes kind of fast but everything you type needs to have that in it so people can read what you type and you should see what everyone else says.
I'm kind of new too but I did one last week. Kind of fun but crazy to keep up with at first.
Re: Those inquiring about the CD twitter party
Wow. It was way too fast for me too! If you're trying to find out more about cloth diapers, the Monday night chats are much more manageable. It's more of a question / answer format - you post your questions, several people respond. Or it kind of gets into topics where lots of people are talking nighttime cloth diapering or EC'ing or something. To "get in", just search for #clothdiapers between 8 and 11pm ET. I usually use Twitterfall.com, type "#clothdiapers" into the search bar on the left, then all the tweets using that hashtag appear for me. Easy to follow.
If you're more interested in cloth diapers prizes, there are 2 more clothdiapers Twitter parties in the next couple of weeks. The first is sponsored by DiaperShops and is next Thursday at 9pm ET.