I'm trying to deploy a bittorrent client application as a Web Start app..

I get the following error while trying to run the JNLP :
Caused by: java.lang.ClassNotFoundException: org.jdesktop.application.SingleFrameApplication

I included the library and there were no compile time errors ..
What do I do to make this thing work?

And another thing - how do I gain access to the local filesystem through webstart ?