Yes, I know, I posted it on megatokyo too...
I just completed my disk image partition utility and the win32 version is now available free for download. It can be used to view and edit partition tables on partitioned disk images. Extended partitions are not supported.
It includes the standalone executable and full documentation.
Download it at http://www.freewebs.com/euxenium/RUNE/
(Please do not link directly to the ZIP file, link to the site)