Have not tried it myself, but it seems to replace the F-117.....at least that's what's in the .rar file. Don't even know if it's flyable or not.
The link to the topic at lockonforum.de may also be of help.
How about this?
http://lockonforum.de/thread.php?threadid=4312
Believe this is the dl link:
http://www.1-filehost.midnightirc.info/index.php?t=dl&hash=e8E8633GJmKMAB4Nda7eF9j5Ou3f8y1t