Oh. Good. Grief! Everything you said.

In other news, I'm glad your windows are in, but that's a pain about the rail. If it's just the supports that are brittle, if you unscrew them carefully you might be able to re-use the rawl plugs that are already in the wall because those are the tricky bits. Was the curtain rail a standard track, or a fancy pole? If it was a standard track you can probably get another either the same size or an adjustable one with the same size supports.