Roberto:
The 727 in the pictures is from Dreamfleet and is payware. In my opinion is one of the best 727 for flight sim 2004. I have purchased Captain Sim 727 for flight sim X and also like that one but frame rate is a little slow on my system.
The 737 in the pictures is a Tinmouse 737 and is freeware available at avsim website. It is an excellent freeware but does not have a VC with the model. I like to fly the old birds with 'steam' gauges and old fashioned INS systems. So both of these are very rewarding. I also like to fly Concorde but TAME does not have one of those
Glad you like the pictures