hey guys, I am currently looking for job

And I want u guys do me a favour on proofreading and make any corrections or some improvement on my covering letter.
Heaps of thanks to you guy..
Dear Sir/Madam
I wish to apply for the position of ‘Java Analyst Programmer / Developer’ as advertised on the web site jobsite.co.uk on the 10th October , 2009.
Having graduated from The University of Northumbria majoring in Software Engineering, I am now working as an IT volunteer at a reputable automotive company. In my current position, I am responsible for design, development and maintenance of the company website. I have also implemented an e-commerce system to the website and the sales have increased 10% compared to the previous two months.
I am a highly motivated person who works hard to accomplish my goal. Also I am detail oriented and able to work under pressure. I want the opportunity to expand on my understanding of software development and professional skills in IT. I am keen to learn new technologies and to improve and maintain on my existing skills.
With my relevant working experience and educational background, I believe I am qualified for the position in your company. Attached, is my resume and I am eagerly awaiting an opportunity to discuss my application further at an interview.
Yours sincerely,
John