Even though the offending class IS in the iReport classpath AND the package is being imported into the report, iReport still reports a ClassNotFoundException problem.
It is not possiblew to deploy a report which reports an error - the rest of the development team would be less than impressed with me.
1. The entire stack trace of the exception
2. The CLASSPATH environment variable.
3. A directory listing of every JAR file and directory on the CLASSPATH.
4. iReport and JasperReports version.
Remove any sensitive information before posting.
Also, if there is more information you believe would be helpful, provide it as well.