I know I read this somewhere, but I can't find it now....Maybe at Greenworks site? or in the zip dowload?  Well, can't find it at Greenworks site, nor in the zip downloads...

In the zip it says:

"ALL DATA IS COPYRIGHT (c) 2009 XFROG INC, FURNISHED HERE UNDER LICENSE TO AUTODESK, AND AS SUCH, FULLY SUBJECT TO,
AND SUPPLIED TO USE TO YOU, AS AN END-USER (ONLY) SUBJECT TO TERMS OF THE AUTODESK SEEK WEBSITE AND THE BELOW TERMS OF USE.
 

SPECIFIC AUTODESK TERMS OF USE ARE DETAILED WITHIN THE SEEK WEBSITE:  http://seek.autodesk.com/terms.htm

PLEASE CONTACT US AT: autodesk_seek@xfrog.com  WITH ANY LICENSING QUERIES, E.G. EXPANDED USE/REDISTRIBUTION, QUESTIONS, ETC."