The following files need to be changed in order to add a new search criterion:

utilities/utl_initialize.cfm
pl/searchCenter/utilities/utl_initSearchStruct.cfm
pl/searchCenter/utilities/inc_applySearchParameters.cfm

displays/disp_searchCenter2.cfm

shared/queries/qmd_opportunities.cfm
pl/searchCenter/inc_opportunitySearch.cfm

pl/utilities/data.cfm

views/home.cfm
cfmod_pipeline.cfm

pl/searchCenter/displays/inc_partnerFilters.cfm