Honda Repair: 2003 Honda Accord O2 Sensor location ???, air fuel ratio, o2 sensor

Question
I have a 2003 Accord and the check engine light just came on. The basterds at Honda want to charge me through the nose because it is just over 60k. I have an OBDII meter that gave me this code:
P0134 Air/Fuel Ratio (A/F) Sensor (Sensor 1) No Activity Detected

It also temporarily gave me this this code:
P2251 Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, Sensor 1) VS Line High Voltage

I am pretty sure I just need to replace this sensor. This is the O2 Sensor I gather.

Does anyone know where this sensor is or where I can find a picture or something brief to tell me how to replace this. I would way rather fix this myself and then tell the Honda people to f$%# off...

Thanks much!

Answer
hell first off is it a six or a four cylinder. On a four it is on the exhaust  manifold near front or side of manifold. On the six it is in the manifold also but it is in the manifold with the number one cylinder. I beleive that it is the rear manifold double check for the number one plug wire. i will have to look it up at work  tomorow. If you would like to email me agian. It has a 7/8 collar you will need a socket for that it can be picked up at an auto parts store. or a 7/8 wrench sometimes if you can get it in there. good luck  P.S. I recommend a dealer o2 than after market. They mess up all the time but it is your money.