The code can be downloaded here. The code is for Solaris 5.8 / tcl/tk-8.xxx. Additional instructions can be found in the sea_demo/readme file.
The following give the complete information regarding how SEA was built and lots of information / source code for several modules:
The complete help files (in tar.gz format) are provided here.
Specific files and samples have been provided below.
Author
Praveen Kalla