All iPhone users can't backup the SMS to anywhere until the SMS box is full, then you have to delete all of them to prevent iPhone rejecting new SMS receiving.
Tansee iPhone Transfer can transfer song/video from iPhone to computer.
Fast MP4 3GP AVI MPG WMV RM MOV FLV Converter is a simple and easy-to-use converting AVI, MPG, MPEG, WMV, MP4, M4V, ASF, MOV, QT, 3GP, DAT, OGM, RM, RMVB, FLV, BMP, GIF, JPG to MP4, iPod, PSP, iPhone, Zune.
Transfer iPod/iPhone music,video,photos,iPod podcast and TV program to computer local disk,and vice versa.It supports file transfer from iPod/iPhone to iTunes. All formats compatible with iPod are supported.