July 01, 2012, 09:28:08 pm
There have been several updated versions since the 2011 competition so the answer for the first question is: yes, that's an older version than the currently available.
As for the second question: yes, you can use your own materials (in fact, I almost never use the provided Lumion materials except of course the Landscape materials but they are all available in the free version, too).
Why don't you give it a try? After all, it's "free"!