Ok, what I would like to do is automatically update the [Content] field with data from two other CMS fields called [OrphanageName] and [Gender].

This is so that these items will be searchable by the Silverstripe search module.

Any assistance would be appreciated

try adding something like this to your page class:

function onBeforeWrite(){
     $this->Content = $this->OrphanageName . ' ' . $this->Gender;
     parent::onBeforeWrite();
}

i didnt test the code, but it should be close... this will always overwrite Content by the way.
-Chris

Excellent - that works really well.

Do you also know how I can also run a search as an AND rather than an OR??

For example, if I search for Male Mynamar - I still get all females showing from Mynamar.

Any help would be great.

Thanks

not too sure on that one.. you probably will have to extend SearchForm.. theres also an advanced search form class but i've never worked with that, so perhaps it already exists?