AVS Video Converter from AVS Video Tools :
http://www.dvdvideosoft.com/avs-video-tools.htm It supports lots of video formats, including WMV and 3GP, MP4 (mobile phones formats).The program is very simple:- download, install and run the program- open a file or files you want to convert- click “To 3GP” button- click “Convert Now”- at the end of this process, the program will offer you to transfer converter files to a phone via Infrared or Bluetooth.Or you can use a program which comes with the phone to transfer converted files.