Eclipse Mylyn WebIssues plug-in?

I'm unable to find a functioning link for the Eclipse Mylyn-WebIssues connector.

All "official sites" are apparently non-functional.

I tried:

The link from the WebIssues site
And get 404 The requested URL /a/ was not found on this server.

Eclipse Marketplace:
And get:
Unable to read repository at!%20Drag%20to%20your%20running%20Eclipse%20workspace..
Unable to read repository at!%20Drag%20to%20your%20running%20Eclipse%20workspace..!%20Drag%20to%20your%20running%20Eclipse%20workspace. is not a valid repository location.