I'm sure this is obvious .. but ... did you switch to the props/poses/etc tab in the content viewer?

I dont know when they changed it but instead of going to Library and then to the categories in each Runtime/Library, now you go to category type and then to the library folder in the category

So instead of poser6 having props, poses, lights ,etc

you have Props which contains RuntimeA, RuntimeB, etc

I found it confusing when I started, so I was wondering if thats where you got stuck

Lyrra