10.5: Wake a sleeping Mac with via Automator

I have a Mac mini in my living room hooked up to my TV. I wanted to be able to control the mini from my iMac in my office. Using Screen Sharing built into Leopard, it's a simple click of the mouse to do this. With a little Automator love, I created a simple workflow that turns the Screen Sharing step into a click of an icon in the dock.

However, even with the power efficiency of the 2009 Mac mini, I don't want to leave it on 24/7. After searching through several solutions that used Python and shell scripting (neither of which I know or could make work), I found this nifty Applescript from Mark Muir that I adapted to solve my problem. Here's my modified code:

<a title="Drag-select from top-to-bottom, then copy, and paste into Script Editor" ...