When you log in your browser stores your credentials in a cookie. These are then re-read each time you move a to new page on the site. This removes the need to enter a username and password each time you view a page which has restricted access. For security reasons some browsers (Internet Explorer) disable the use cookies.
It is possible to configure Internet Explorer to 'trust' the Thumper Club site by doing the following.

On the menu click - Tools->Internet Options->Privacy(tab)->Sites(button)

Type - www.thumperclub.com into the "Address of Web Site" field and press the "Allow Button"