To make a simple button that contains image only, you should use SkinStyle="imageOnly". File imageOnly.css is contained in SuperButton/osb_data/osbSkins/ folder (downloaded zip).Let's make image button undo.We make main image in PhotoShop and name it undo_normal.gif .We want our button have Hover Effect, so we make another image and name it undo_hover.gif .If we want our button have another image on Disabled status (not ), we make another image and name it undo_disabled.gif .At last we make an image for Pressed Effect and name it undo_normal.gif .We place all our images into SuperButton/osb_data/osbImages/ folder.Important. All images should have equal dimensions.
That's all. Now let's use our new button <osb:SuperButton runat="server" SkinStyle="imageOnly" SkinFolder="/SuperButton/osb_data/osbSkins" ScriptFolder="/SuperButton/osb_data/osbScript" ImageFolder="/SuperButton/osb_data/osbImages" ImageNormal ="undo_normal.gif" ImageDisabled="undo_disabled.gif" ImageHover ="undo_hover.gif" ImagePressed ="undo_pressed.gif"/> And we have a button