I have made custom normal, spec, and bumpmaps. Is there anyway to add them to the material instead of having them automatically created when you click the "Make Bump" button from the diffuse map?

Thanks,
Tobbo

Just drag-n-drop them on the right slot.

Make sure they are named correctly as well.

See the following wiki page under the section titled "Applying Images to Materials"
http://www.esenthel.com/wiki/index.php?title=Material

Changing the names got the job done. Thanks!