Why websphere if you are just going to use it as a servlet container? surely tomcat is a better option?
Since websphere is a commercial product i think you will be able to get a much better solution direct from the vendor's support program than from a group like this. One solution however is to use the proxy module.
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Raditha Dissanayake
<a href="http://www.radinks.com/sftp">http://www.radinks.com/sftp</a>
Lean and mean sftp applet with GUI.