You should see a new window open that goes to the LinkedIn Web site and asks to verify your name and e-mail address, as well as enter a password for your new LinkedIn account,.
If you want to be known on LinkedIn by another version of your name (say a nickname, maiden name, or proper name), or if you want to use a different e-mail address from the one used for your invitation, you can change the details now in those fields — First Name, Last Name, Email.