There are now a couple ways you can now access your webmail account. First is through the PageCentral.com website. In the top right corner of the website, enter your full email address and your password. If you prefer you can also access your webmail by typing in your url and adding /webmail to the end of it (ex. http://www.yourdomain.com/webmail). This method will open a window for you to enter your full email address and password in.
Through the webmail client you can also change specific account setting related to your email, shuch as configuring and auto responder, changing your password and configurign spam controls.