Hi
Here nice howto create a windows 7 or windows 8 usb bootstick with linux.
You have to download and install http://ms-sys.sourceforge.net/ first!
fdisk /dev/sdx /*delete first partition*/ d 1 /*set ntfs partition*/ t 7 /*set boot flag*/ a
/*format with ntfs*/ mkntfs -f /dev/sdx1
/*copy content of windows iso to stick*/ cp -avr /mnt/iso/* /mnt/usb/
/*wirte bootloader to stick*/ ms-sys -7 /dev/sdx ms-sys -n /dev/sdx1
Have fun!