Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Now that is a classic i'd like to see in FSX as well. Funny thing is the Frogfoot is based on an American design; The Northrop YA-9. This aircraft had to compete with the YA-10 in the late sixties and early seventies. We all know the outcome of that......the Warthog won. Less then half a decade later the Soviets launched the prototype of their tankbuster; the SU-25. More infor regarding the YA-9 here: http://en.wikipedia.org/wiki/Northrop_YA-9

Less then half a decade later the Soviets launched the prototype of their tankbuster; the SU-25. Classic story of how things were done during the Cold-War.
I think Kazunori Ito did an SU-25 quite a while back. Search flightsim.com and I think you'll find something. It was for FS9, but I'm sure with some work it could be what you're looking for.