Hi pipkiller,
Are you asking how to start the launcher? If so, just press F8 to start the launcher. The launcher currently supports MT builds 432, 445 and 451 (and also Tick Data Suite if you have it installed). If the launcher does not work on your version, it will give you a message box prompt. Otherwise, it will change the title of the MT4 title bar. Some further details (including screenshots) are in the manual.
Hope this helps.