I'm using the latest Smart Macros's, AHP and Win7. I am having the exact same problem. When I add any time condition other than Dusk to Dawn the macro's fail. Even Dusk to Dawn fails as it does not constrain time - it's always on.
Have you checked both the Hardware configuration, and the time and timezone in your windows installation, to make sure they are correct?
Do the Dusk/Dawn times in the Hardware configuration screen match up with the correct times for your location?
One other thing to keep in mind, is that you can't test the conditions by triggering the macro from within the software. Clicking on the macro in the software will ignore the conditions.
If this is what you have been doing, then it could explain what you are seeing. Try triggering them from a hand-held remote, or from a separate plug-in controller.
The developers were unable to reproduce this problem on their own, so I will let them know about this thread.