Database Search is a part of DataAssist.
There is no difference in the steps for using eCart 4 over eCart 3 for this, it is exactly the same.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.