Hi Deb,
If you're still having problems with that Shockwave file, post the URL and the height and width it's intended to display. I try to work-up the coding.
This Technote at Adobe is working for me, when I test a sample code with IE7, Firefox 3, and Safari 3.2 browsers.
http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_4150
Danno