Change your Snow Leopard dock on Mac OS X with this video tutorial. Go to Leopard Hard drive -> System folder -> Library folder -> CoreServices folder -> Dock App (right click) -> Show package contents -> Contents folder -> Resources folder -> Scroll down until you get to Scurve-1.png, Scruve-m.png, Scurve-sm.png, Scurve-xl.png -> Highlight them all and delete them -> Select the dock you want to change it to -> Paste the files into the place that you deleted the others -> Search for "Terminal" in your Spotlight -> Type "killall dock"
Once you've done that you'll see that your dock has changed and that's all you have to do.
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