modding/SH2-SH3_Viewer.zip
modding/SH2_3_4_Viewer.zip
modding/SH2_3_4_Viewer_0.9a.zip
modding/SH2_3_4_Viewer_0.9b.zip

Different releases above.

Unzip onto your computer
Edit the cfg file to show the proper path to your SH directories
Open the program
It helps to have a screencap program such as FRAPS open if you want to make screenshots
You can change from the green background using hex colors in the cfg file also
http://games.groups.yahoo.com/group/sil ... fications/
originally from group above