Newbie, browser problems - help!

Hi All, I am a newbie trying to learn flash MX…

Problem(s) I am experiencing are:

Width of my movie always seems to exceed what I am designing in. (check site for example)

Netscape and Explorer both alter the width of my movie and I want to learn to eliminate this.

Secondly, I have 2 preloaders installed on my site, one seems to only work for explorer, the other only with IE.

The site is on at

If anyone can be of assistance, I would apreciate it greatly!

Thanks kindly All