Hi guys, just wondering if anyone would be so kind to help me create a custom start button icon?

I have attached both .png & .ico files for your information

The picture is of a simple power button. If possible I would like the button to have the 3 light stages effect (from dull to bright light) similar to the tradditional start button.

Power button - .PNG Format
https://www.sendspace.com/file/7z7pax
Power button - .ICO Format
https://www.sendspace.com/file/fn993b

Also if at all possoble I would like to change my current volume icon and other system tray icons if someone can PLEASE tell me how, i would be VERY greatful.

Any help would be much appreciated.
TTSquad