Hey JC, its Dan... I went and got my own nick cuz i dont like using my moms.
I'm just curious as to why you would need transitions between scenes if you are only building a signature...it sounds as if you are trying to build an entire site. A signature wouldn't need multiple scenes even with a preloader.
What you said earlier about scenes is impossible...you can't make it not load scenes whenever you want because flash isn't built that way. I know a LOT about preloaders and I know that the only way that what you say can be done can only be done with loading multiple movies onto different layers. This may have been what you meant, but I thought I would point this out anyways.
Also, just so you know, the signature I created for my mom is only 36k in size so it doesn't require the preloader... it would have been smaller if the visits text box wasn't put in.