If you are searching by "web address", that is the one that starts with "http://www.______.com" you have to use the keyboard. You press "Ctrl" and "O" and type the address in the white box and press "go".
Now, if you want to sent an e-mail, click on thelittle white envelope with the blue arrows around it right down next to the word "Start" and it will take you to your "Outlook Express" page which is where you type your e-mails.