By the way, hamberie,
Do you already know about the embed code's two switches?
The first, "delayLoad", changes whether or not the user will need to click the panorama or photosynth once before it starts loading. The default value is to "true", but can be changed to "false" for auto loading along with the rest of the page.
The second, "slideshowPlaying", changes whether the panorama or photosynth will begin its animation automatically or wait for the user to manually click the [Play] button (sadly, one of the controls that is stripped out of embedded Photosynth.net viewers). The default is set to "false", but can be set to "true" so that upon loading, the panorama or photosynth begins its default animation.