No native support for widescreen resolutions.
Download the "Final Fantasy VIII Launcher" created by magixts. Check the Qhimm.com messageboard for download links. http://qhimm.com/
Follow the included install instructions for the launcher. Your desired widescreen resolution can be selected when the launcher is executed.
The "Stretch 4:3 Aspect Ratio" checkbox can be used to toggle between a pillar boxed or stretched image.
There is a bug in the launcher that has 1280x768 output as 1280x720. To fix this open "FF8_Launcher.exe" with a HEX editor. Search for the following...
80 02 00 00 E0 01 00 00 10 00 00 00 00 00 00 00 CC 46 40 00 20 03 00 00 58 02 00 00 10 00 00 00 00 00 00 00 FC 46 40 00 00 04 00 00 00 03 00 00 10 00 00 00 00 00 00 00 30 47 40 00 80 04 00 00 60 03 00 00 10 00 00 00 00 00 00 00 64 47 40 00 00 05 00 00 D0 02 00 00 10 00 00 00 00 00 00 00 98 47 40 00 00 05 00 00 D0 02
Change the bolded "D0 02" to "00 03".
Then open "dx_hook.dll" with a HEX editor. Search for the following...
80 02 00 00 E0 01 00 00 10 00 00 00 00 00 00 00 DC BA 00 10 20 03 00 00 58 02 00 00 10 00 00 00 00 00 00 00 F4 BA 00 10 00 04 00 00 00 03 00 00 10 00 00 00 00 00 00 00 10 BB 00 10 80 04 00 00 60 03 00 00 10 00 00 00 00 00 00 00 2C BB 00 10 00 05 00 00 D0 02 00 00 10 00 00 00 00 00 00 00 48 BB 00 10 00 05 00 00 D0 02
Change the bolded "D0 02" to "00 03".
The game can be stretched with letterboxing OR the game can be pillar boxed with windowboxing in widescreen resolutions.
The launcher also fixes the "black box" texture problem with NVIDIA cards FYI