Dodge Repair: ENGINE LIGHT, dodge durango, o2 sensors

Question
I went to autozone to see what my light was on for. the code read bank one sensor one high current bank two sensor two low current. they told me to replace the o2 sensors. I bought 2 at 130.00 and replaced them. went back to have the light cut off and it came back on the next morning with the same codes. I feel like i wasted 130.00 because now they do not what the problem is. can you help? I have a 2002 dodge durango 4.7 liter motor.

Answer
Ok first off autozoners are not experts in fact they are mostly kids and retiries who need a easy job. did you or them clear the codes in the computer?? try this
disconnect the battery and reconnect it... off for 5 min
but remember you did not waste your money. I replace my 02z every year it helps with fuel economy and performance.. hope it works  Joe