Implementing search wizard

I have run data assist and have got my search form, but there are many fields and I want to reduce the size of the search form by making one text box search many columns of the database. DA has created a search page with a form on it, so I am wondering if I can now change the form by using the search wizard, or is it best to just start a page from scratch?

Also, what is the difference between DataAssist Search Wizard and the Search Server Behaviour mentioned in your help system? The DataAssist Search I am launching from the bindings panel looks like the images of the Search Server Behaviour (http://www.webassist.com/help/Data-Assist/dataassist_search_sb.html), but I don't know where to find something that looks like the DataAssist Search Wizard pictured in the help system (http://www.webassist.com/help/Data-Assist/dataassist_search_wiz_step_1.html).

So, basically I am a bit confused as to how I simplify a search form, and do I start from scratch, or can I use an existing form that already links to a results page?