Flash margin widths

[font=Arial][size=2] I can change the body width as often as I want, as soon as I publish the file it goes back to its old settings. Does anybody have any idea how to make the change stick? [/size][/font]
[font=Arial][size=2][color=red]Different browsers such as Internet Explorer and Netscape have different margin widths. Because you want to maximize the animation and “Take up every pixel of space available!”, you don’t want the margins to interfere with what your visitors see. You want to remove the margins. To remove margins, delete the <body> tag and place the following line in its place:[/color][/size][/font]
[center][font=Arial][size=2][color=blue]<body topmargin=“0” leftmargin=“0”>[/color][/size][/font]

Its an HTML issue. If you have dreamweaver, open the html file that flash produces, right click on the background of the page and fill in 0 for both margin width and height. The other ones to the right of margin are for macs so fill in a 0 in them too.