Hi Mark,
The Sopwith Camel is done by David Eckert with textures by John "Bomber_12th" Terell.
The aircraft can be be found at Flightsim.com, the file name is camel04.zip. I'm not 100% sure who did the naby texturesm but I asume these were done by John as well.
The Albatros D.III is done by Stuart Green. The textures are default, but you can also pick up the file albaplus.zip at Flightsim.com. This file contains the model and a load of beautiful repaints by -E.
All Stuart Green models can be found on his web-site (
http://homepages.domicilium.com/peveril/hangar/wwi.htm )
YOU can find the Pfalz D.III there as well. The texture in Fengz's sceenshot is one of the many I did for this model. This particular one can be found here:
http://www.sim-outhouse.com/index.php?lloc=downloads&loc=downloads&page=info&FileID=13141
The Bücker Buchmann is done by Oliver Fisher. It was available at Avsim.com, however the link towards file buecker_131_v.2.zip is very dead!
I think the texture is in the file casa_7234.zip done by Leen de Jager, but I'm afraid this link is dead as well.
The Ansaldo S.V.A.5 is a masterpiece by Manuele Villa and can be found here in the file library
http://www.sim-outhouse.com/index.php?lloc=downloads&loc=downloads&page=info&FileID=12557
There is a fix available here:
http://www.sim-outhouse.com/index.php?lloc=downloads&loc=downloads&page=info&FileID=12581
The Lublin is done by Michal Puto and can be found as file lublin_r.zip at Flightsim.com.
Enjoy,
Huub