This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Sun ONE Web Server 6.1 no longer supports legacy servlets. The legacy-style properties files for the server you want to migrate (servlet.properties, context.properties, and rules.properties) are removed during migration. For more information about these files, see "Appendix A" in the Sun ONE Web Server 6.1 Administrator�s Configuration File Reference.
The above appendix gives some more info and guidance.