also, getting those 5 digit numbers are not very hard. just a one way:
search for the number 155421, you will see that the guy has
[email protected] e-mail address on the info. Go register starbucksworld.com get the pass from icq.com/password. And it is yours... This is a 6 digit number, but there are many 5 digits like this... Also, this was a "paid hack", it costs money. There are a lot more tricks to get numbers for free...