We're not lawyers, and we don't expect you to be either. Please don't tamper with the Javascript or the button that's provided in the search box. It might stop VO-Search from working properly for you if you do. Please don't on-sell it to anyone else. We spent months creating VO-Search and are paying for the web hosting ourselves, so let us have a bit of credit for it.
Computers often do as they please.
It's absolutely free. A simple text link on your links page will be fine. If your site is indexed by our search engine, VO-Search can double as a local site search. You can modify the appearance search box in any way you like. Just be careful to keep the necessary fields and button code intact.