How do you convert ut2004 maps into UDK maps

I have heard of people moving maps from ut2004 to UT3. I have all the models in 3dsmax format but I don’t want to recreate all the terrain stuff all over again.
Is there an easy way to bring the terrain map over to UDK?

umodel from http://www.gildor.org might do it,but im not certain.

Thanks 661gaz I will give umodel a try.

UModel won’t convert maps. Check this tool: