Hello,
1) Sorry, I don't have the permission to redistribute the sound files from Ineisis Online, and they're not included in the package (but there were just a few of them).
If you're interested in some sound effects, please check this website
http://audiojungle.net/category/sound maybe it will be helpful.
2) The Editor.exe operates on 2 versions of the world "Edit" and "Game" version.
"Edit" it's what created during editing stage, "Game" is what's created during building stage.
Editor can load only "Edit" version, and generate "Game" from it.
Please see "SDK/Documentation.chm/Resources/Worlds" for more info.
Ineisis Online can only generate "Game" version, save it to file and reload it later, it does not operate on "Edit" version at all. So worlds created with Ineisis cannot be loaded into Editor.exe