Upgrade?
£30?( Oops sorry £19.97!). For something which some guy has knocked up off his laptop? If it's so infallible, why didn't he go to a proper publisher with it, instead of trying to rip off the great British Public? The words 'urine' and 'extraction' come to mind, but I suppose there are a few chavs/numptys out there who will buy it...
In Matalan you could buy a decent shirt & tie for £20, which, arguably gives you more chance of an upgrade than this load of tosh.