I've been using SecuritySpy since the latest Sharx cameras I bought stopped working with EvoCam. It is expensive, but well supported and very full featured. Much more than what I needed. However, it didn't offer a time lapse option like EvoCam had.
I'm not familiar with Yawcam, so can't say whether SecuritySpy does the same things.
My Sharx cameras allow me to send an image at whatever interval I want to my server, which sounds like what you need. Can you do this direct from the camera?