Try this web site.
It cannot be recommended high enough, and is run by a good guy.
http://mpgtext.net/u-boot/
I think the mod is called this:
UnrealUboat1.43.7z
If you search this site (see the link under the free of Dangerous Waters- to right of this screen), then I feel sure you will find more threads of interest.
Good luck and have fun.
