are you using a multipart request? If not, or it doesn't ring a bell, then your upload will not work and won't get to the server. You should check our FAQ entry on FileUpload
Download the I/O library (commons-io-1.2.jar) from Apache Commons project and stick into the lib directory. That will resolved the NoClassDefFoundError exception.
File upload handles in a different manner. If you want to retrieve the standrd form items such as text fields you have to access them using the isFormField method of FileItem class.
Hope this would help.
Seevali
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.