Advanced Custom Field Search

Hey All,

I have been trying to get an advanced search feature on my website.
An example of what I’m looking for is on Auto Trader the search box there is the kind of thing I’m looking for.

I tried following this tutorial but it seems to keep failing not matter what I do. Not too sure if it’s compatible with wordpress 3.3 :\

This search feature needs to be able to search custom fields too which I think is why it seems more complexed.

Thanks in advance
James