I tried to sign your guestbook but the character limit there is rediculous. That's the first thing I would change if you want people to be able to really comment on your site.
As I said there, you've made a good start but I agree with Wolfie, there needs to be a heck of a lot more information. I would invest more time in putting information in rather than doing chatrooms (which noone realistically uses) and polls and that sort of thing. I would like to make two points on what has already been written there:
First of all tamagotchi means "Little Egg" not loveable eggs as some like to believe. Tamago means egg in Japanese and Chisai (shortened to chi) means little. Put these together and you get Tamagotchi.
Second of all, the matchmaker doesn't always comes on seven years of age. I have had a number of occasions where it has come at 9 years of age instead. The best thing people can do it be patient rather than messing with the times which can make things worse!
Otherwise, keep up the good work. It takes a lot of time and effort to make a webpage so keep hammering and you will get there!
BTW... when you sign the guestbook and click on "return to website" or whatever it is, the browser brings you back to your content index instead of the html page. You might want to fix that too.