Sure post your question at a more appropriate Forum AMD Opencl Forum : OpenCL. The Moderator should be able to help you find a copy.
But I believe to get access at Opencl forum you first need to post your question here: Newcomers Start Here and then one of the Moderator's will Whitelist you to be able to join any Developer's Forum like AMD OpenCL forum.
This User on the link above has a direct download for AMD SDK. When you click on the link it will download AMD SDK 3.0.The link is still good. But if you specifically need version 2.7 then you will need to talk to someone in OpenCL or its Moderator.
From AMD DEVGURUS forum:
It might be a temporary server problem. As a workaround, please download the installers from here: