You are free to use Sigma Visual ajax builder under the LGPL license. If you are using it for commercial purposes, we encourage you to purchase a commercial license. 
 

Version	Sigma Visual Ajax GUI Builder Package 2.1 release
Release Date	Jun-05-2009
Sigma Visual GUI Builder (Zip 6.9MB)

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Sigma Grid Download

Version	Sigma grid 2.2.0 release
Release Date	Apr-24-2009
Size	973 KB
Download Sigma Grid

Version	Sigma grid sever side samples(2.1 required)
Release Date	Nov-04-2008
Database/backend integration sample with PHP (599 KB mysql script included)
Database/backend integration sample with C#.net (864 KB sql server data file included)
Database/backend integration sample with VB.net (892 KB sql server data file included)
Database/backend integration sample with JSP (1.3 MB mysql script included)
Database/backend integration sample with classic ASP (coming soon)

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