They are basically just tiny graphs with all the extra bits removed (no labels, lines, indicators, etc.)

However, I ended up not being able to use this particular ones as I was unable to beat out all the cross browser incompatibilities (Safari and Moz were fine, but IE freaked).

SWFChart with the same general strategy is what finally ended up working.

Nice sparklines… would you mind providing more detail on how you got there.

Thanks