Is she employed? If so, have her check with her employer to see if there is an EAP (Employee Assistance Program) available.
Do you have an EAP at your place of employement? Some programs will cover extended family members for short term counseling and referral....
Check your phone book for UnitedWay 1st call for help, they may be a resource. Is there a University in your area? Another possible source. There is also assistance available online, not to replace real help, but to supplement it. Try ivillage.com for many support groups.
Good luck to her. The lose of a spouse is quite devastating, there is help available but sometimes you have to dig for it.
Finally suggestion, look up a medical referral service and explain the situation.