I would recommend you try this versatile
iPhone to computer transfer
http://ipod-tool.com/ipod-software/transfer-iphone-music-to-computer.html
How does it work? Just great. It supports iPhone to computer transfer, iPhone to iTunes transfer and computer to iPhone transfer.
All files can be included, like music, videos, photos, TV Shows and podcasts etc.
When you use it, you will know why so many iPhone users choose it.
Hope I can help.
For more iPhone instructions, use http://bing.com