For an to appear in the DAR - Grant Recipient Search it must 
1. Have a Constituent Code in RE of Grant Recipient.  The Date To must be after today's date
2. On the Org record in GrantedGE, it must have the Recipient box checked on the Constituent Summary tab.
If the Grant Recipeint informaiton in RE is correct as stated in number 1, then click Recipient Refresh in GE on the Recipient Info tab. This will update the org record in GE and check the Grant Recipient box.