Simple file manager using php and javascript

I need a simple file manager script using PHP and javascript (with some AJAX). This should use the tree menu script found on [login to view URL] - or something similar I need this to be very basic and easy to extend. It will display all directories from a specified directory on the left hand side and allow us to browse down to any level directory so has to be recursive. On the right will be a list of files that are within the selected directory, this should be updated dynamically on the page using AJAX. We also need to be able to create folders in the given directory, edit their name and delete. We need to be able to upload any file type using a single file upload field. We also need to be able to edit the filename of any file and delete that file but nothing else. This file manager should operate in a popup window as a standalone application, it will be called from a page that contains a form with a field for the filename. When someone selects to add a file to the page it will close the popup window and insert the file path into the page with the form field. The form will contain more than one field for inserting the file. AJAX bits are adding a file or deleting a file or editing a filename, these should open a modal window. NOTE: all we need here is the file manager and code to insert the filename into a form, the form is already created. The code needs to be cleanly written so it can be easily modified and built into our CMS, ideally this will be 3 files for the whole thing: 1 javascript and ajax code, ajax can be separate if you use a library 1 php code for renaming, deleting, adding etc 1 html for the popup I would prefer someone from the UK to handle this. Needs to be done ASAP. Please only bid if you or your company are doing this work directly, outsourcing is NOT welcomed.