LDD Modding

[Semaj Nagirrac]

Anybody know how to mod LDD? What I mean is, does anyone know how to add custom decorations to the software? I know people that have done it here: http://www.rockraidersunited.org/topic/ ... extractor/
but I don't want to bother them too much about it. Any ideas? I'm not a computer programmer by any stretch of the imagination, so if someone can push me in the right direction it would be appreciated. Thanks.