Wavelab LE 7 MP3 patch not working

Hi I am having trouble with wavelab.
I installed the mp3 patch to enable me to save recordings in mp3 format but after installing the patch the option to save in the mp3 format still does not appear.

How do I fix this?

Also after re-installing wavelab the revording window no longer goes away when I go into another aop. It stays on the screen and covers the workspace of the other program.

How do I fix this?

Regards
Nathan