You will need to activate the web folder within your account so that you can upload your completed website. You can do this by:
Sign into your account. Click on "Website" at the top of your screen. This opens your page manager page.
You will see a box with "Site Actions" to the right of Page Manager. Click on the box and select "Activate advanced design features". If you have already activated the advanced features then it will not appear on the menu.
Next Click on site actions again and select activate third party tool. When you activate this tool, everything currently on your website will be deleted. You may wish to back up this information first before activating the web folder if you think you may wish to go back to the previous version of your site. This option is on the same drop down menu as the activation option.
"Click go to my web folder." Now you can drag and drop your website files into the web folder.
IF you are using Vista there are additional steps needed to make sure the web folder works correctly.
ALSO you cannot access the web folder using firefox, you must use IE.