I have the exact same crack on my passenger door panel. Drivers side has absolutly nothing.
Maybe because I never slam my door, but others slam my passenger door? (Man is that annoying)
I have a `99 with 60k.
By the way, I've had the window problem only on my dirvers side in the past, but I can see that both windows are loose. I plan to fix them soon, for now I just hold the window to the rear while closing it, the window moves much faster pushed to the rear.