EmmaGale, I had the same problem recently.
However, as my site has a lot of php scripts some of the results were very hard for me to deal with.
Let me explain further.
Some of my classifieds have long urls. That's the way it is because of the program I'm using (I tried many, like this one the best). So when someone does a search with freefind they get the loooong urls and it 'breaks' my custom layout for the find.
Without excluding the entire /classifieds/ directory from freefind, I could not work my way around that issue. And obviously I would not want to exclude that directory from any search. I read all the freefind faqs, library et all pages. And could not find a work around.
So while I liked freefind for html only websites, I did not like it for dynamic pages. At all.
Perlfect Search is what I chose to go with. If you find you end up with the same problem, check it out. Or others read this. I hope you see this before you decide to upgrade your freefind account.
http://www.perlfect.com/freescripts/search/