To find the image the ingame image, like in your hand as you walk or on your body, it involves some maths. Calculator ftw.
Anyway, open up the hum.wil file and find like a armor. Lets go with Base dress (M) and (F). Find the starter image which is roughly 1200 in the .wil file. Basically all you do is 1200/1200 = 1. You put this into the database and it'll show up as base dress. Male and female are both the same because the std mode is different for male and female. So.. if its 24000 as the start number you do 24000/1200 = 20. Hope this helps. I'll try edit this and explain in greater detail if you still do not understand. GL!
/kizza