This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Make sure that you downloaded the package labelled "Eclipse for Java EE Developers". The "EE" is important. That'll have everything you need to develop servlets (you'll also need a servlet container such as Tomcat).