You may well have read this already, but I thought it worth noting here on the blog as I mirror the download on my personal site as well.
The Squawkbox version 4 release is at this link.
As always, I am still mirroring the older releases in case someone needs them for testing or some other reason.
Old (Unsupported) versions
Version 3.03
Version 3.04
Version 3.10
EDIT:
Fixed links on this post today.