You're probably OK - I don't think I've ever zapped anything. I used to be paranoid about ESD precautions but as the years have passed I've become positively blasé (and will probably get my backside bitten eventually). I still handle stuff carefully but I don't worry any more if I accidentally touch the PCB. The only time I really bother with proper precautions is when handling things like CPUs (or, in general, any out-of-circuit semiconductor components).
Stick it in a PC - if it works, you're fine. If not, you're extraordinarily unlucky!
Stephen