Help with Wiring

Hello I have a colmon furnace with central air. Ive included some pictures to help with my question:
Ok when this switch is set to “cool” the ac is running regardless of what thermostat is set to. When set to heat, the thermostat controls it.
http://img26.imageshack.us/img26/5264/img20110616124343.jpg

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Here is a picture of the wiring in my thermostat
http://img684.imageshack.us/img684/2894/img20110616124040.jpg

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Now a picture of the wiring at the furnace.
[http://img219.imageshack.us/img219/4962/img20110616123923.jpg

[/IMG]](http://imageshack.us/photo/my-images/219/img20110616123923.jpg/)

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My question being how would i wire the thermostat correctly to control the furnace/ac with the furnace swtich set to control. Could i use the thermostat and select heat/cool and would this fix the problem with the ac running nonstop?

Thanks for your help…sorry i cant provide more info on the model numbers and what not

Call your local A/C service tech.