Richthofen's Skies mod now available at my webspace HERE.
1. Right click to save to your hard drive.
2. Extract files to your Targetware\data folder.
(if this doesn't work or install properly, place the zip in the data folder and change the name to rs071804.zip.tmp, then start Targetware and go to download the mod - you shouldn't have to download anything, but it will automatically extract the files for you).