Torrent the .ISO and mount it on a virtual disc. The test is easy if you dont have the IQ of a frog.
Theory, If you do a weeks intensive course (can be found quite cheap if you look hard enough) around 400pounds, Which if you work out your lessons at £20 a pop it works out about right, Plus you get your test after the 5 days and if you fail they will book you another test for free.
