Removing content type from the list

Hi All

I have installed the SQL search (trip search) module on my site and it works fine. I was wondering if there is any why of getting the following to work.

1. Once you have click on the advanced search link the advanced search criteria fields are always collapsed and hidden, how would I make it expanded on page load??? Please view attached image ex.jpg section 1

2. In the advanced search criteria section I have managed to remove a lot of the additional fields that I didn't want client to see and use, but I am unable to reduce the amount of content type tick boxes displayed. Does any one know how to stop some of these content tick boxes from being displayed Please view attached image ex.jpg section2

Thanks, shmatty