<p><a href="http://www.ucas.com%5B/url%5D">www.ucas.com</a></p>
<p>I doubt the application form for 2007 is going to turn up until 1st September. Fill in your name and address. Choose 6 schools you want to apply for and the subjects (no minors except in Scotland. No switching once you've applied. That's the way it is). Fill in your personal statement, which is all about how much you love your study subject. Get a reference from a teacher. Click send. It's that easy. You cannot apply for Oxford and Cambridge in the same year. The Oxbridge deadline for overseas students is 20th September. If you are in the US you will have to go for an interview in New York or Vancouver. There is no financial aid for overseas undergrads. (In some countries you can apply to your own government for it though).</p>
<p>ECS are disregarded and it even says this on Oxford uni's web-site somewhere in the overseas application section (which you might like to consider reading <a href="http://www.admissions.ox.ac.uk/int/%5B/url%5D">http://www.admissions.ox.ac.uk/int/</a>
and also
<a href="http://www.admin.ox.ac.uk/io/guide/index.shtml)%5B/url%5D">http://www.admin.ox.ac.uk/io/guide/index.shtml)</a>. Only education from age 16+ is considered for UK/EU applicants so I highly doubt they will have any interest in high school before that age. In fact they will probably discount everything other than AP, SAT and ACT scores.</p>
<p>You need some demonstratable interest in E&M. Looking at the original post, an interviewer would ask why did you apply to E&M when you main interests appear to have been Spanish, English and Music?</p>
<p>Of course you can get into Ivy League grad schools from Oxbridge. Who do you think started the Ivy league? Things that are not acceptable are law and medicine. In other words, if you have a foreign degree in medicine you have to take equivalency tests to practice in the US. It's the same for any foreign university. Same thing with law, you would have to prove you understood US law.</p>
<p>If you are worried about maths, google some A-level maths papers. If you can do them, then you should be fine.</p>