FX wont work as the openGL versions that are required has changed. XML's might work in advanced output if you modify a few things, but mapping XML's won't work as the shortcuts system has changed.
So in short, going from Resolume 5 to 7 isn't ideal. Most of your work will need to be re-built.
Is the advanced output xml corrupted (as in you can't open it) or has the associated display been auto disconnected when the computer is asleep? Sounds like the OS disconnected the displays and then all you have to do is just open advanced output in Resolume and it will automatically re-associate th...
Yes, with a bit of time in wire you can.
I'm not sure how much delay you get in Wire (I believe it's one frame?) so that's going to be a lot of nodes.
I believe sometime in the future, the amount of delay will be editable.