Well his site is down, maybe another 12 year old that wanted to make quick money...
anyway it might help other people so there are several ways to attract:
Ad's - it can be google ad's, facebook, bing and etc. for this high amount of money is required to gain customers.
Forums- Free advertising, won't get fast results but it's a good start for a new business.
local marketing - great way to start a business, a tip from me if you succeed in local they will be your main customers and they will also bring you more customers.
SEO - great way to get customers but needs alot of money to do so.