If you have a custom splash, coming soon or opt in page on the front of your site, take the following steps to remove it when the time comes:
1. Under 'Master Settings' choose edit site descriptions
2. In the box titled "Portal Page Address" edit the text to read: index.html
3. Press the "Apply Style Changes" button at the bottom of the screen
4. In the control panel, click on Site Rebuild
You may need to press refresh (F5) on your browser to see the freshest version of the main page of your site immediately.