All of the information you need is in this thread - just make the effort and read it.
Companies receive hundreds of emails from prospective low hour pilots who are usually unsuitable for their requirements and they simply dont have the staff or resources to educate the world and his dog.
In general the best (only) way to get a job is to be there on the ground making friends and talking to the right people. If you have the right number of hours on the correct aircraft (read the thread - this varies with time) and the right personlity you will succeed.
Note, however, that times are hard and tourist numbers are down so it could take some time for a vacancy to arise.