1995 Isuzu Rodeo Question Cooling System

My vehicle is leaking coolant and overheating.

The first thing I tried to do to fix the problem was use stop leak to seal any broken seals in the radiator and engine block. However, I found that the leaking continued.

It seems that the leak is commming from hoses or something else near the back part of the engine. I found hissing and steam comming from this area in the center of the engine right next to the firewall. The area is so tight that I cannot pinpoint the source of the leak.

Can you help me identify thie problem, and instruct me as to how I can gain access to the area it to fix it?

Thanks!