Hi RichD,
1. Does the script send out an email notification when someone uploads a file?
You can add your own send mail function after the file uploaded to achieve this requirement.
2. Is there any sort of backend, or control panel to log into to retrieve uploaded files?
No, the php uploader just the upload control which use to upload the file to your server, it is not the whole file manage system.
Please refer to example http://phpfileuploader.com/demo/ajax-attachments.php, it should help.
Regards,
Ken