How can I find someone through their first name, age, and location?

By finding someone I mean their other profiles/personals at other sites where it'll give me a way to contact them better. Thing is, I'm in true.com for FREE but can't do much in there really but wink at people and make myself present and there's this person that's interested in getting to know me better but can't really respond back. Now, he has given me his number BUT the true.com people pretty much disclosed it from me by putting ### - ### - #### instead 'cause I guess I'm not allowed to that information seeing as to how I'm a FREE user....I am aware of his first name, age, and location but didn't get much from google nor yahoo.....anyway I can track him down better?