Okay, using Carrara 6, if you look at the browser window at the bottom of the screen, you will see that there is a tab called content.  Click there first.  If you have a document open you will need to make sure te tab at the left it set to browser first.  Once in the content window, you should see a small folder icon to the right at the top of the browser.  Click this and choose add runtime.  A file window will open, navigate it to the runtime folder of your poser installation.  Normally it's something like C:Program Filese frontierPoser 7.  Once you click it, click ok and the system should show you the content of that folder.  To use an object, just drag and drop it into the scene.  To use a morph, texture etc, just drag and drop it on to the object like you would a shader.  Using this method, you can use any morph which works for poser.  You can manipulate any object, or part of an object that you could in Poser using Carrara's far superior movement, rotation, and scaling controls.  All available morphs will show up in the properties box for any object or section of an object whish is selected.  You can also modify textures and displacement maps in any image editor and pull them in using the standard Carrara Texture room.  Once you get used to it, you probably will never mess with the clunky Poser interface again.  Have fun and good luck.