Need website help transition between swf's

1

Hi I have created a website at http://www.freshlemon.co.uk/cavalier/intro.html, the probblem i have is my transisitons are too slow and u have to wait a few seconds before page loads after clicking on button, how can i get them to slide in and out like many flash sites do without any effort on a click of a button, to make it look more professional, can someone please help, really desperate thanx!