A jeep comanche does not have a true frame so it's somewhat difficult. However there are companies that make a front mount receiver and the plow can mount to that. I believe that SNO WAY makes a light plow for your application.
The Jeep Comanche could have a snowplow attached to it by using brackets specific to the Comanche and Cherokee. Many companies such as JC Whitney and Rockey Road sell snowplow kits specifically for this vehicle.
It should bolt onto the grill, or come with something hooks to the grill of your Jeep that it will then bolt onto. It's like those small metal grills you see on police cars. They bolt on the same way.