There is an extensive documentation in both pdf and html formats, you should take a look at it, it may give you a better insight of the plugin. You most likely don't need change the 90% of the options.
Are you trying to search for posts, pages or custom post types (like products)?
Do you know if the property is stored in a custom field, or somewhere else?
Most of the time different properties are stored as custom fields – maybe that's what you need.
I'm not going to be able to answer today, as I'm going home, but if you can describe exactly how you imagine the search and what data are you looking for, maybe I will be able to quickly configure it for you tomorrow morning – if you want it of course.Best,
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