Before I can import my textures into UDK I found out they must be in .tga format (which can store extra alpha channel) and 32 bit.
Also the textures must be equal to the power of two:
16 x 16, 32 x 32, 64 x 64, 128 x 128, 256 x 256, 512 x 512, 1024 x 1024.
Also the textures must be equal to the power of two:
16 x 16, 32 x 32, 64 x 64, 128 x 128, 256 x 256, 512 x 512, 1024 x 1024.
Once the textures were imported into UDK I created my own material in the material editor; pluging in diffuse texture into the diffuse connector; normal texture into normal connector; specularity could be plugged into the specularity to make the material look polished under a light source.