New "ajax history": tested in IE, Mozilla, Opera, Firefox and ... thanks to Apple's beta release: Safari.  Forward/Back/Bookmark perform as expected.  My script - however - is not up to "release" stage.  While it is simpler and much smaller than any other "solution" (Really Simple History, History Manager, SWF - all non-working, btw), it isn't as easy to implement when you don't have an existing framework.  I am rather certain - for instance - that mine won't work without CodeIgniter in place.

Mootools Tips.js *patch* applied for IE - at long last - so that the png now shows transparent.  Rehashed a lot of old png fixing tests, but nothing worked besides this solution... and when hiding the 'filter' call in javascript, the CSS still validates and only IE is bugged with the odd CSS solution.

Next up... updating inprogress.us.