Java/Swing urgent requirement

I need a competent java/swing programmer who can work within an existing application to get a JTree data-enabled. All the database access code is written - now I just need the tree logic. The user should be able to click on a tree node and see the corresponding record details displayed in the form to the right of it. Should then be able to edit those and save them back to the database. Whoever does this must be able to document how it works thoroughly. ... and it needs to be complete by Monday morning!