ours (Fug's) was built off MikeJS's freezetag plugin which was a great jumpstart but it has evolved alot more since then to run on all gametypes, freezetag points, 3rd person view of your body when frozen, custom class unfreezetimes, spy unfreeze times depending on whether they are cloaked/uncloaked or disguised. and more coming soon
we've been watching your plugin Chase on your blog since we heard you were working on it, nice job on your first SM plugin