I began creating this a short while before discovering the requests for it here in another topic.
This is a gadget for the Windows Sidebar which will show you your Mint statistics similarly to how the Junior Mint OS X widget displays them.
Behaviour is similar too, click on the statistics to change the date period - since the beginning, today or the last hour. You can also change the refresh rate in the configuration screen.
You can either have the gadget docked to the sidebar:

Or floating on the desktop:

Updated 3 February 2007
To install, simply double click on the “VistaMint.gadget” file and Windows Sidebar will install it.
To configure, click the little spanner icon in the top right corner of the gadget as if you were configuring any other gadget.
Gadget Home Page: http://surfionline.com/development/vista-mint-gadget
Shaun - I used the PNG files from your Junior Mint widget. I’ve placed a credit for that in both the Javascript source and the gadget description. If it’s not acceptable, please let me know.