iMovie - Changing From NTSC To PAL & Other Way Around

I want to make a dvd in pal format and at present its only doing them in NTSC format. I've looked at the help on the site which states:

iMovie initially set all projects to PAL or NTSC video depending on the type of camcorder or device you connect to the computer, or the format of the first video you import.

To set new projects to be NTSC or PAL, follow these steps:

Update to iMovie 3.0.3 or later. It is available from the iMovie website ( http://www.apple.com/imovie/). iMovie 4 is available as part of iLife ( http://www.apple.com/ilife).
Open iMovie.
From the iMovie menu, choose Preferences.
Change "New Projects are:" to either NTSC or PAL.

Now I'm using 6.0.1 but I can't see "New Projects are" anywhere under the preferences in iMovie HD, can someone please offer me some suggestions as although this is my first mac I've had a pc for sometime so I'm not totally clueless about changing options and looking where to find these things....