This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Which plugin did you download? Are you sure it's compatible with Eclipse 3.2?
I'd suggest just downloading Eclipse Europa, which is the latest release, and selecting the option for "J2EE Developer". This will give you the Web Tools Platform (WTP) which in my view is all you need to develop Struts applications.