To install, extract in $path_to_qtcreator$/lib/qtcreator/plugins/Nokia. So there should be
zxzxy@zxzxy-Founder-PC:~/qtcreator-2.5.0/lib/qtcreator/plugins/Nokia$ ls Dox
And you can restart the QtCreator, and click Help-About Plugins, this tools should be here.
To use it, just click Tools-Doxygen, and you should know what to do next.
Just for the one who is a new to QtCreator:)
RE: Installation - Added by Kevin Tanguy about 6 years ago
Why would you want to extract it in "Nokia" directory?
Having a "Kofee" directory aside should be preferred as it is not intrusive regarding Nokia stuff and uninstall is as easy as removing this directory. Moreover, I'm in no way affiliated to Nokia so it doesn't make sense.
A part from that I agree that the documentation on the wiki could be reorganized/clarified, nobody complained about it so far though.
edit: Even, I write "Kofee" directory but it could be "3rdparty" or "external" or "unofficial" etc.