From Pictures To Media

hello i am using drupal 6 community site guide. now i am stucked at this point:

From Pictures To Media
In section 5.1.4, we have created a “pictures page”, which gave
our users an overview of all available image galleries. We could
expand this page, to also include video galleries, and thus become
a “media” page (fig 5.12). Here is an example approach:
1. Add an extra field: Video, which you display as Image
Thumbnail.
2. Allow an extra content type: videos.
3. Add an exposed filter on content type: video/image, so users
can pick their category. Be sure to check “Limit list to selected
items”, an option only available from Views version 2
(and up)

i cant understand how to do this. Can anyone explain this?

 

great knowledge you have given to me
thank you

 

Now explain me that what is it? i cant understand it.

 

i have really enjoy the information that you have provide here and i am so thankful to you by providing such nice and interesting information in this forum ..