new to diy repair

so I just put my 02 back on the road after a year of it sitting in the driveway, so now I have issues. I have a bad post cat 02 sensor, no brake lights, my parking brake cable my have snapped(not sure if broken or if it broke where it attaches)and my air bag light is on. any help would be appreciated. as I am new to diy car repair details would be helpful. I need this truck and cant afford a different vehicle or to take it to a shop. thanks.

 

Enter info here in search. Go "more" and to 1st Gen. One subject at a time.
Rockauto and/or Amazon for parts.

 

this.

a little search goes a long way.

if you have any questions after that, let us know.

 

has anyone had to replace the stoplight switch, and can anyone tell me how? or show me a picture of where it is?