This might be because of some errors in your page. Change your Internet Explorer setting as mentioned below to check the exact error message.

Select Main Menu -> Tools -> Internet Options. In the IR properties, click on ADVANCED tab, under 'Browsing' heading you will find one option 'Show friendly http error messages'. UNCHECK this option. (This should NOT be ticked)

Open Outlook Express, select Tools->Account from the main menu. A window popup will come. Select "Mail" tab, click 'Add', select 'Mail'. This will open another pop up window. Give necessary information in the wizard.

The user name should be complete email id. POP and SMTP Server names will be your domain name (without www).

The .mdb file will require Write permission for Internet Guest Account. Please send us a mail with the file name and location, we shall give Write permission.

It is better to put .mdb file in a seperate folder, thus by giving write permission to this folder, you will not require Write permission individually for the .mdb file.