It is not as easy Bufallo.
Yes you can import most of the 2006 stuff into TS 09. Many of the 06 assets will be marked as faulty. Many will look sub optimal. And many will simply not work as supposed. Even the build-in TS09 assets and routes contains numerous faulty or non-functional items. Because they was designed for earlier versions. Nobody by Auran made the effort to get at least a feedback from the creators. Not even modify the HTML assets of the French and German sessions into english language. With some more care, they (the Auranites) could discover that they already posses the english (multi-language) version of the Marias Pass approach route (from TRS 2006). They simply picked the routes and assets from the TRS 2007 version and included them into TS09 (therefore many non-germans claims that TS 09 offers a lot of new content. For the 2007 user, nothing is new, except of the seven native TS 09 assets).
I am not very happy with the inclusion of two routes and heaps of assets made by me and Lothar into 09. Then probably will be the authors and not Auran blamed by the users for non working sessions and faulty assets - bad reputation for us. The routes was designed for TRS 2006 and not for TS09.