1. there is no "qtembeded" (or alike) binary, so don't expect one to be there.
2. Qt for embedded linux looks exactly the same as Qt for desktop -- it consists of executables, libraries and plugins. There is no application that you can "run" and call that "Qt Embedded"
3. You need Qt built for your target device and linked with libraries available on your device. I have no idea what you did as the site you have been working with is not an official Qt site so it's very unlikely anyone here will support their installation process.
4. To build Qt and other applications and libraries you need a cross-compiler (which I assume you do have), a sysroot for your device (containing libraries matching those your device has and include files compatible with your device) and source code for anything you would like to build as well as sources or binaries for dependencies of whatever you are trying to build.
5. A bit of knowledge about "console ways of doing things" -- if you expect to click some button here and there and keep your fingers crossed that eveything is going to be done for you then this probably won't happen.