How to get in touch with her again?

Hello, there's this really hot girl I went to school with for three years, for two years now we've been in different schools though. Back then we flirted quite a bit but still she talked about the many boyfriends she had when I was around. She's extremely hot but I'm just above average, pershaps she's out of my league... Anyway she's been with a guy I know for about 6 months now, they recently broke up.

How can i get in touch with her after all these years? is it too soon after her break-up? Keep in mind that I live in a small town (40.000 people) where just about everyone my age knows each other... So if I did something wrong people would know.