Ha, thanks :)
I appreciate everyone's help so far :)
Nick, here's a description of what's going on with the graphics - the graphics for some things are visible if you open up the ROM in a sprite editor program. Things like the Holy Weapons are plainly visible and you could edit them in place in the ROM. Other images - like character portraits - are not visible in a sprite editor, even though they're in the ROM somewhere. This is because they're compressed - like what Winzip does to a .zip file, shrinks it down - and compressed data is much harder to work with than its uncompressed form. I was able to change Sigurd's compressed portrait because I knew where in the ROM his compressed portrait data was. How did I know this? I have some Japanese documents that detail the starting location and ending location for portrait graphics. I'm not sure how the author came about this information, but I bet they did something like run the game through an ASM debugger, found a routine that's called to decompress graphics, watched for that routine to be called and made notes of the data areas referenced.
So why can't I just replace the Holy Blood chart graphics for the names, like Holsety with Forseti? Because, since they're compressed, I don't know where they're stored as data inside of the ROM. If I look at a save state for the game in YY-CHR - which is a snapshot of the running MEMORY set - I can see the graphics in their UNCOMPRESSED form. They have to be uncompressed to be displayed as a graphic. But this does not tell me where they are loaded from, or stored in compressed fashion in the ROM.
So... I could probably do what others did to get the compressed portrait locations BUT I don't have the time to dedicate to just this right now.
I'm planning on tackling the rest of the text changes in the next few days and updating the patch. That should do it for most text based issues. Graphics, missing translations... those are the things that are going to take a while.