Kevschmev , What version of photoshop do you have ? I have 7 and it handles a PNG well You could take it into PSP and save it as a photo shop file or In PSP copy the layer than paste it back in as a new layer. Then go back to the original layer and paint it solid black . You shold see the viens then . There kind of transparent and hard to see in a solid white back ground. You can do like Arendar said or you can make a copy of Michael's bump map bring it into your paint program and paste the viens into a new layer move them around till there were you want them then flaten and save as a new bump map.