Problems with platforms and other downloads!

[Underground!]

Hi, I got a problem with all the things I have downloaded at Ami and this site! The things I've downloaded is: Brick Bridge,The new BR Station pack, Digidampfman's station pack and many other! It's like I can find them in the scenario menu (Where you can choose which things you wan't to have in your game, you know) But then I choose them and some of the platforms has already been choose, and then I make the scenario and save it. Afterwards I start a new game, and then it's only the stand-dart things there are. And then I'm freaking out! There is no problem with my trains or vehicles, it's only platforms and stuff! Please help me if you can...

[Illegal_Alien]

http://www.tt-forums.net/viewtopic.php?f=37&t=29348

[Underground!]

Thanks IA,but I think is a bit difficult, I hope in the future that it would be more easy, because I'm not very good friends with does programs, but I'll try! Thank you anyway!