Thanks for your interest. The tutorial is entitled "Understanding Web
Services specifications, Part 1: SOAP"

and can be found at
https://www6.software.ibm.com/developerworks/education/ws-understand-web-services1/index.html

Just tried to access the linkage but failed with authentication. Geronimo has lots of tutorials about web services to play with.

You may take a look at  http://cwiki.apache.org/GMOxDOC22/developing-web-services.html

Jeff Chi