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.
When configuring a JBoss AS server in Eclipse, Eclipse looks for various files within the JBoss directory to verify that it contains a valid JBoss AS installation. The files looked for changes with every version of JBoss AS. You might be better off using a more recent version of Eclipse, and with using JBoss Tools - the tools track the constant shuffling of JBoss AS files much better than Eclipse itself.