'01 Montana 0x Sensor Location

I'm simply looking for confirmation. The Montana has only 2 Ox Sensors? One Located Before the Cat just before Engine Exhaust/Exhaust pipe joint, and 1 between the cat and Muffler?

Looking for Bank 1 Sensor 1.

Okay, I thought I was gonna replace the sensor. Instead I drive up, and right off the ramps I was using. Yeehaa...I that'll learn me to get a spotter.

So do I have anything to worry about frame wise. Here are some photo's, of the damage. Your input is welcome. I "think" it's nothing too serious as the ramps, well one in particular the brunt of the weight of the vechicle. Fortunately the ramps weren't too much higher than the usual height of the vehicle.

Click to View Larger Image.

http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2124.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2124.jpg)
Passenger Side

Below are Driver Side
http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2122.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2122.jpg)
http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2121.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2121.jpg)
http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2120.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2120.jpg)

Below are Ramps, last photo is Passenger Side ramp.
http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2118.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2118.jpg)
http://i140.photobucket.com/albums/r40/AMDXP_RR/th_100_2117.jpg (http://i140.photobucket.com/albums/r40/AMDXP_RR/100_2117.jpg)

The damage does not look that bad to me. If you were talking complete creasing of the boxed area I might be concerned about alignment issues, but I would not worry about.
Bank 1 sensor 1 would be the one tucked up where the exhaust pipe meets the manifold. It can be an SOB but if you have the correct socket for these sensors should be okay. The other one is downstream and pretty much a breeze. I would not reccomend Bosch, I have never had much luck with longevity, and have seen this mentioned elswhere on this website.

Maybe someone else could add thier two cents worth:)