The Universe Design Tool is available in the Client Tools for the BI Platform. However, you have to have a BI Platform installed in order for Crystal to be able to use the universe, and the BI Platform trial requires a server OS.
Personally, I really dislike having to work with universes in Crystal. There are some limitations. For example, you really want to get all of your filters into the universe or into the query you create from the universe - DO NOT use the Select Expert in Crystal because Crystal will not be able to push the filters down to the database and will, instead, pull all of the data into memory and filter it there.
-Dell