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.
I'm afraid I don't understand the problem. There's nothing in MyEclipse that stops you from creating a file called validation.xml in WEB-INF/ and populating it, right? Can you elaborate on the problem?