Please, Please , Please – Don’t use welcome pages.
Some websites use a “Welcome to our website” image with a link to the actual site as the index page for the website. Don’t do this. Some search engines might not follow the link on the welcome page and your index page won’t contain any useful content for search engines.
In addition, most web surfers don’t like these welcome pages. Your index page should not look like www.zombo.com.