Not sure on FSX compatibility.
For some reason, SimV has two copies of it in their system. I believe they are the same thing, so just pick one.
Note: It requires the base airfield package. (Linked in the description of the file on the page.)
http://www.simviation.com/simviation/?I ... 2&mark=530Regarding the Yakovlev, that's FS2004 only as well I'm afraid. It is very, very good however!