In case you're wondering why you haven't heard from them, the Facebook friends you contacted recognized your name and knew you didn't need a head-shot of me for the reasons you stated. (Which were, to be frank, quite lame considering how extremely difficult it is to figure out when my birthday is.)
Also, let me save you some time: not a single one of the results of a Google image search for my name is a picture of me, so you can stop clicking through every image of a person that search returns in the hopes that it'll be me. (Although I am flattered you clicked through to this one.)
If you would like a picture of me to deface in what you mistakenly believe will be a hilarious fashion, contact me at myentirenamesquisheduplikethis (at) gmail (dot) com and I'll send you a couple.
Update: if you're so inclined, feel free to scroll through those results and comment on which one you think I should be. Given this post (and the general tenor of the events chronicled here), I know what I'm voting for.