Neogrub for multiboot Windows 7

Hi, I need to make a multiboot for 4 Windows7 systems.All the systems are in the same disk, but differents partitions.
I also wont to hide the partitions not actives. I've read a lot of articles but no luck....
I think I must to use neogrub bootloader and I've already installed it, but I can't find any example for the configuration file similar my case.

Thanks for your help.