Hi Captain.. this is what I've worked out in the INI file.
unknown
known
338 360 44 44 0 1 0x1020000 0.00666667 -0.112676 0x1020001 0 0 0 0
xxx xxx size size x x ParentID xxxxxxxxxxx xxxxxxxxxx ItemID x x x x
338 360 ==> numbers ares the start position (referenced to the original ParentID window/menu - this is usually 1024x768 for the current screen res).
IOW you have the parentID and as you go down the layers of ItemID's each zone is referenced to it's parentID (itemID above - or the TOP parentID).
This zone is the button/command (type dependent) activation window AFAIK.
44 44 ==> Is the size area of the image to be placed.
0 1 ==> Not sure but I think this is the graphics MASK info of the image. It might also have something to do with the fact that most of the images are referenced as *.tga files where in fact the files used are the equivalent *.dds files.
0.00666667 -0.112676 ==> Not sure but it has something to do with the parentID (scaling maybe).
0 0 0 0 ==> This seems to be Scale Size as well as Scale Position of the itemID (Image) within the parentID (image/window).
Within the INI file there is reference to Static image (probably immovable images), Image arrays (an image with multiple smaller images within), etc. The commands look like they might be referenced as pages with the unique number (eg [G2F Ixxx])
This is where I'm at, at the moment. I'm sure by creating a page (there's currently 101 of). I can get the Nav Mod to work. Will try this and report back.
If you hear of an SH4 SDK, i'm all ears..
Later