From what you say, yes you screwed it up. You now have one (renamed) runtime folder within another runtime folder. Poser can only see the contents of the original runtime.

The contents of the new runtime have to be merged into the existing runtime. On a PC you can do this simply by dragging and dropping one onto the other, and clicking OK to the message that follows. Are you on PC?

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)