After you have entered an an item into the Web Editor by completing Step 2 on the Edit or Add page, you can see how your changes will look on your web site by clicking on the Preview link.
If this is a new item that you have entered, after completing Step 2 you will be returned to a list showing all the items that have been added, including the item you just entered, with the Preview link located to the left of the name of the item, along with the Edit and Delete links:
In this example, a new press releases called "Amazing New Press Release" has just been added to the Web Editor. To see how this new press release looks on the web site, all you would have to do is click the Preview link.
If you have just modified an already existing item, or just want to see how an item that you are looking at appears on the web site, you can click the Preview link in the top right hand corner, under the Logout link:
Remember, you have to finish Step 2 before the Preview link will work: if you have just changed the content of a field, such as the headline, and you click the Preview link before finishing Step 2, the Preview page that pops up will NOT reflect your changes. Until you complete Step 2 the server does not know what changes you have made, and will not be able to show you how these modifications look on your web site.