Steps to create your own Windows 7 USB boot media.
1) Open a command prompt with admin privileges.
2) Type diskpart
3) Type “list disk”
4) Locate the entry that corresponds with your USB thumb drive, and type “select disk ”
5) Type “clean”. This will wipe the partition.
6) Type “create partition primary”
7) Type “select partition 1″
8) Type “format fs=ntfs quick”.
9) Type “active”.
10) Type “assign”.
11) Type “exit”, then close the command prompt.
12) Open the ISO file in 7-zip. Extract the contents to your thumbdrive.
13) Remove and boot.
Borrowed this from the comments made by thirdwheel in the following blog post: http://www.addictivetips.com/windows-tips/install-windows-7-from-usb-drive-requires-2-simple-steps/