I've just pushed changes to our source code repository updating to the latest jquery, jqueryui, superfish, and colorbox.
I added a file /ClientScript/jqmojo/mojosuperfish150.js and modified the /Data/skins/jqueryui-1/layout.master to load the new version.
Note that mojosuperfish150.js is just superfish, hoverintent, and supersubs scripts combined into a single file.
Best,
Joe