how to i get bump maps to work

i have bump maps i know that work however how to i get it to work in unity please help thanx

Check out this page on how to use bumpmaps.

Make sure you have at least one pixel light turned on and shining on the object with the bump map, otherwise the bumps won't show.

The shader/material applied to the gameObject must be designed for bumpmaps. If the material is designed for bumps be sure to assign the Inspector's bump map slot with your gameObject's proper bumpmap file - the same way you assign the diffused texture map.