So let me ask real clear in what way is the option "Search for Listing Type" created in content boxes ? if you say its working well / how are you getting that option to appear in content boxes please.
Would really like an answer to this simple question please, as I don't want send my site live then find I have to pull it apart to fix this, if as you say there are no errors then it should be as simple as

step 1 do this, step 2 do that, your done ? thank you