Flash CS3 files in Dreamweaver

Hello, my question is this. Does anyone know why the flash file I publish as swf , looks fine when I load into a Dreamweaver page and preview in my browser, but when I load them on to the server the files don’t appear. I tried loading up just the swf on it’s own (outside of a dreamweaver page) and linking to it and that worked fine. So I’m thinking there’s not a problem with the swf file, more a problem when it’s placed in the Dreamweaver HTML page. Any advice would be much appreciated.