how many times do we have to say this,the US do NOT have any access to british criminal records,unless you have committed serious breaches of british security,ie imported tons of class A drugs or been involved in terroist activity,then you will be fine entering the USA on the visa waiver form,hundreds do it every year,and i know of loads of people with records who have had no problems at all,if you apply for a visa you will be turned down straight away.and then you will never be allowed in as you will be on there files.