Here is a way to convert Google or almost any Gadgets and use them on your Vista SideBar. I have tried it successfully with Widgets from widgetbox too. You can transform almost any gadget into one that can live on the Windows Vista sidebar or your Desktop. Freeware Amnesty Generator lets you do it, without your having to know even a line of coding !
Download & Install Amnesty Generator (www.amnestywidgets.com/GeneratorWin.html) .Then, choose a Web gadget you’d like to turn into a Vista gadget, click a few buttons to display the gadget’s underlying HTML code. Copy and paste that code into Amnesty Generator, change a few settings, such as the gadget’s name or size, if you wish, and tell Amnesty Generator to turn it into a Windows Vista gadget. The gadget will appear in the Windows Vista Gadget Gallery. From there you can move it to the Sidebar or even your Desktop.