This is the software I was talking about called Chirp. From the website, you can find out if it will play nice with your dual band radio. Works fine with all Baofeng that I can tell. If it doesn't work on your computer there are a few tutorials with a quick Google search that can point out what plug-ins you might need to install.
Here is what it looks like when programming a Baofeng.
Here is what it looks like when programming a Baofeng.