See this topic for the first one:
www.dmxzone.com/forum/topic.asp?TOPIC_ID=26096

And here's the second Easter Egg:
1) Create a blank page
2) Go to Commands/Create Web Photo Album
3) In the title field, enter: "play a game" - without quotes, then click OK
4) Play the game hidden inside !!!

Have fun!

-Dave

MMCP