These were designed and packaged for Mac users. Here's an archive of the all the image (png format) files if you'd like to build windows .ico files. I thought these were included in the original download but I guess I decided against it to reduce the file size.
This link will be TEMPORARY. It will probably stay up for a good while, but i'm stating this in case someone tries this link again down the road and it no longer works.
DOWNLOAD PNGS:
[link]