From Moriji Technologies:
FTP BulkUpload is a Java utility that will let you bulk upload files via FTP. All you have to do is specify the host name, user, password, and root source directory in BulkUpload.xml. You may add as many hosts as you like. To run it, download the files into a directory and type java - jar BulkUpload.jar at the command prompt. This version is the first release on CNET Download.com.