Also, it doesn't seem possible to throw the modded cursors in My Documents/My Games/GC2TwilightArnor/ and have them work either.
You need to give your new cursor the exact same name as the default cursor, and put it in the exact same folder for it to work.
So far as I can tell, nothing I change in the INI file for a modded set of cursors actually has any effect. The cursors themselves definitely work (they're basically flipped horizontally for a left-handed user) but changing the hot spot to x: 31 and x2: 31, doesn't. So, the cursor highlights and clicks things as though it were still a right-handed cursor.
Although I am not a complete expert on this sort of thing,it seems to me as though it is not possible to change the hotspot of cursors. I will need to look at the INI file again, since I don't do much modding in that area.