It sounds obvious, but first of all, make sure you include your name, address, mobile number and an email address. If you haven't got an email address, now's the time to get one. There are plenty of free web-based services available like Yahoo and Hotmail - there are no excuses.
Personal profile section
This is your chance to grab the employer's attention. A strong statement will make them want to keep on reading and could set you aside from other applicants. Use positive language and make sure you use this space to really sell yourself.