This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
From your screenshot it looks like its not even rendering html .. its just sptting out what you typed in the jsp ... so I would question if you have the s prefix defined in your jsp.
<%@ taglib prefix="s" uri="/struts-tags" %>
From your comment it looks like you changed it to scriptlet code to get the context path and then the namespace .... it looks like if you had your prefix defined correctly then I'm guessing you can probably do this: