There is a problem with the v0.2.2 build. In Tournament/Web Content/WEB-INF/lib/ the file webutility.jar is out of date. It does not include the StringUtil file. This results in errors on when submitting the registration page. To fix it, just create a new webutility.jar file from the Web Utility project and put it in the WEB-INF/lib directory when you deploy.
You can also grab the updated jar file from CVS.