I just d/l this script today, I installed it in less than five minutes and customized the layout of the results in less than 10 minutes! Some cool features include: highlights the search term in search results, opens up a new window for the search results, and has an admin center! The admin center lets you skip/ignore files and directories from being searched. Also, the search form has three styles, which can be edited and called via SSI to any page. This script also has good support too! Very fast. I got a reply within a few minutes on a Sunday... that is pretty cool!
One drawback: all results are shown on the same page and aren't split up, but I asked e-mailed support about this, and he said that this is planned for the next version.