This site is being deprecated.
Please see the official X‑Plane Support page for help.
XP10 is available as a download package from Laminar Research which can be found at https://www.x-plane.com/?s=x-plane+version+10+
However before you make the financial commitment why not ask your latest question directly with Laminar at email@example.com for a definative answer. If no response send me a private message and I will give you the names of my contacts within Laminar.
This site is no longer being actively maintained.