Automate Click on webpage

I want to automate a click on a webpage to start a video stream when I am away. I am running OSX 10.6.
I am new to applescript so I need an easy to follow and implement solution. I use Audio Hijack Pro to time the audio recording. www.freechapel.org/live has a streaming window with the caption “Who needs church?” This window must be clicked to start the stream. Any help would be appreciated. I have viewed the subject forum, but can’t figure out how to perform this task. Thanks…