Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
You can try and contact the distributer and see if they will offer a refund. But always and use paypal for this exact reason. However, you can convert them over to FSX, but will require effort.I shouldn't admit it, but I searched out a bootleg earlier version and the install includes ALL of the models vs only a few in the legit purchase. The pirated install file is quite a bit larger. I feel like i was ripped off for being honest and purchasing the MiG........
PS Those models are also missing in the current FS2004 install.