I looked at his website - they are a typical electrical training organisation offering courses to C&G certification standards. If he isn't following their correct entry criteria then let them know via the City and Guilds website. It would be a waste of your money, I'm guessing around �450 ish. I can't see any reference to David Wyre personally being involved in writing the 17th edition IEE wiring regulations (BS7671:2008), either at IET (who run IEE) or IEE. It's written by "committee" anyway, not one or two people!
The C&G 2330 and 2360 courses have both practical and theoretical elements. You can see there is much more to learn than just about the IEE 17th edition wiring regulations (BS7671:2008). How and why things are done the way they are is a big part of it, as well as correct connection methods and practical considerations.
This site below offers revision quizzes for the 2330 course and gives a good idea of the course elements and type of things you will learn/need to know about to become an electrician.
http://www.swindon-massive.co.uk/electrical/re vision/2360pt1/assessment_choices.html
Scroll down to the 'FREE' SELF-MARKING MULTICHOICE EXERCISES SECTION where you can see the various elements involved in both the level 2 and level 3 parts of the course
The practical aspects are important and if you do the 2330 or 2360 courses you will be assessed on your practical skills as well as theoretical knowledge.
The IET/IEE site is a good place to look for info too, especially regarding the publications such as the 17th Edition wiring regulations (BS7671:2008) and Guidance Note 3 and also for course info;
http://www.theiet.org/