I just downloaded 3herosoft iphone to computer transfer for mac, now how do I use it?

I just got a new computer and want to transfer all my music from my iphone to my computer. My iphone is the only place my music is since my old computer crashed.
I want to put all my music- playlists and play counts and ratings on my new computer. How do I do this?
The 3herosoft downloaded fine but the se up doesn't work. When I open it it's just a bunch of symbols.

Why now use iPhone/iPad/iPod Manager? It supports to transfer files from iPhone, iPad, iPhone versions.
With it, you can transfer files from iPad/iPhone/iPod to PC or from PC to them. Moreover, you can also transfer files between them.
http://www.ipadmanager.net/

Check out this tutorial that helped me before
http://ipodiphoneipadcopytools.posterous.com/ipodiphoneipad-to-mac-transfer