1) FTD time should only be logged as simulator and dual received, plus the approaches. No total time, no ASEL, no landings, no simulated (hood) instrument. Fix it now, save yourself from headache later.
2) I'm pretty sure FTD time doesn't count as cross country.
3) Yes you can have both so long as you are the sole manipulator of the controls in an aircraft for which you are rated.
4) Check the reg's but it should say something like: 20 hours in a simulator may be used to satisfy the requirements of 61.XX(y) (aeronautical experience). Find the reg, and it shall spell out what you can work on. It should include all the standard instrument stuff: IR maneuvers, approaches, holds, full/partial panel stuff, etc.
Best of luck on the instrument rating.