uhhh well qt creator and esbox are two different development tools
esbox builds in scratchbox, the virtual linux machine
qt creator does it under windows (unless you install the linux or mac version) or supports remote complie (never tried that though)
anyways, download this if you want to have more support and newer tools:
http://qt.nokia.com/downloads (qt sdk 1.1.2)
don't install or create projects anywhere with a long path name, it can't handle spaces in the path.
esbox is really old (over a year since last update i think) so is basically discontinued and if you run into problems, hardly anyone will help

oh, and for the eclipse problem, i think you need to use an older version if the nokia stuff isn't working. since they don't update that stuff, the instructions are ****ed too. when they say 3.3.2 or newer, probably its broken again at 3.4 :P