The view new posts link is what you want. See the expanded screen shot below. This is a screen shot of the home screen, the link is right there with view unanswered posts / view unread posts/ view new posts/ view active topics.
It's the only way I search. If you then want to view the home page to look back at old posts just click the main MMO logo in the top left.
Once you have opened that new posts link, save it as your desktop link to the forum and hey presto, every time you visit you will see only new posts.
You can also search only your own posts, the link is also in the included screenshot. Look above the date on the homepage, it's right there. However I wouldn't recommend using that as you will miss everything else.
Note the below is just a picture, the links won't work. Visit the home screen yourself and then use the above instructions.,
Easy as that.
Nothing finer than a Morris Minor