Mr Dog,
You'll find the prices change per area, due to costs of living, materials on jobs and competition rates etc.
One can only assume that if you're not anything to do with the Inland Revenue then you can only be a pre-tiling course student?
To help with your answers I think you'll need to change your research criteria a little. Rather than trying to get info from established existing tilers on rates of pay etc etc, you really need to be assessing the amount of work you think you will get in your area if you were to start tiling.
There's too many now seeing the answers to your question in places like forums and then doing a course to get the skill, sticking an ad in a paper and expecting the calls to flood in.
You really do need to stick the boot in a few tile shops doors and related traders can help, along with your own business skills etc.
But just a few prices from tilers all over the country probably wont help with working out what you can make at the beginning of your tiling career.
Hope this helps still though. 🙂