[Graphene Theme] Adding more db tables to search function

I would like to adjust the search function so that it will include additional fields from the database (I’m using an event management plugin that stores the events in separate tables). I have some code which is supposed to be placed just above the loop in the theme’s search.php. Graphene seems to use a template part and a separate loop.php in its search function.

Can you tell me what location in which Graphene file would be equivalent to “just above the loop in search.php”?

Outstanding theme, by the way, my clients (litquake.org) and their users all love it.

jeannine

http://wordpress.org/extend/themes/graphene/