audioboo how to find specefic users?

Hi everyone, I just joined audioboo via iphone, and am curious to add new people and listen to them. Anyone want to share their username? mine is aradix85 I am also wondering how i can search for specefic users,i have a few usernames already. I see the browse category and then filter but if i enter a name in the edit field nothing shows up so i am not sure if that is for user search. Thanks in advance for any information, Greetings, Anouk,