This message was posted on behalf of Intel Corporation
Thank you for your report.
We’re aware of the issue with the download links. It has been already reported to the proper team and we hope to have it fixed soon. The reason of the issue is that the Edison files were moved to the Download Center so all downloads would be in a single location. This is still a work in progress and currently there are some broken links, however they will be redirected to a pre-populated Download Center query soon.
In the meantime, in case you need the Edison Yocto image, you can access it through the following link: https://downloadcenter.intel.com/download/26995/Intel-Edison-Yocto-Poky-image
We apologize for any inconveniences this may cause to you.