Here is the same thing, I modified it to get it to work with AIDA64. You need to type "%USERPROFILE%\AppData\Local\Microsoft\Windows Sidebar\Gadgets" (without quotes) into your Windows search box and put the unzipped folder in there. Then you will be able to add the gadget to your desktop. Once again, I take no credit for this gadget, credit belongs to SFKilla.
Link to file --> http://refile.net/f/?d_y
Edit: Not sure why the previous download stopped working, but this should work --> http://www.4shared.com/zip/TR5tt4B1/MultiSensorgadget.html