A while back, I was interested in Sky Pilot and so investigated its licensing status. It is as follows:
After reading the terms and conditions, it seems the Netscape Theme Park contest did not assert any rights over the code submitted. So, the situation depends on the source of the files. Files in Sky Pilot which are derived from MPLed files (such as Modern or Classic) are MPLed, because Modern and Classic are MPLed, but other files (e.g. all the images), which were created by the original author, remain his property. The MPL is not as viral as the GPL - it only applies to files based on already-MPLed files. Therefore, legally, you cannot do anything with the original files created by the Sky Pilot author that he has not permitted you to do. If there are no license files which apply to those images (e.g. no LICENSE file) which give you rights, then you cannot do anything with them. Creating a version of Sky Pilot which works with the latest Mozilla is a derivative work, and (I would say) requires the copyright holder's permission to distribute. So, I'm afraid that 1.0 Sky Pilot won't fly until you can contact the original author and get his permission. :-( Gerv
