Nope, I installed it normally from an SD card, with no special tricks. Not all of the icons were automagically changed for me, but that was expected and I just used icons from xtra. Everything works quite well, and my only complaint would be that the Connect/Disconnect in the Qtopia ("Start") menu are still the old style, and stand out. The card manager icon was changed to a CF card - I forget what it was before, but I use the CF slot for wireless, and only have an SD card. Not really even an annoyance, just interesting.
Two of the icons in xtra, xtra/gnome-mime-application-vnd, and....apparently the same icon again, xtra/gnome-mime-application-vnd, appear in the list but don't seem to actually have an image.
Screenshot attached.