Have you taken a look at the Getting Started Guide or any of the other CSS Menu Writer documentation? Here is a link to the support page with the guides and other information:css-menu-writer/
In regards to the preview do you see a preview rendered in the preview area? What is the OS and version of DW that you are using? Please post back with this info and any other details that you can come up with for the issue you are experiencing so that we can look into this further. Some screen shots might be helpful if you can provide them.

@@@ I took a very good look on how to get started how ever the problem is, that anything I do it will not show in preview and if I will progress and click on apply the result on CSS page is whole bunch of nonsense .... OS 10.5.8 / DRW CS4
Also. What I want to create is simple six item one-level vertical menu so I do not have to fool-around with Flash nor Fireworks roll-overs ...


