This week's book giveaway is in the Cloud/Virtualization forum. We're giving away four copies of Learning OpenStack Networking: Build a solid foundation in virtual networking technologies for OpenStack-based clouds and have James Denton on-line! See this thread for details.
I recommend that you use the latest version of Struts so you are up-to-date with bug and security fixes they have implemented.
That said, older versions of Struts are on the Apache Archive Site. You want this file.