Have screwed up and replaced my center home button with clock

Please someone help me here. I just reinstalled the latest cyanogenmod and have somehow replaced my home/app button with the clock launcher so i cant get to my apps. Does anyone know how I get the original home button back? please help, Thanks

know in the process of messing with it Ive totally lost the whole bottom bar. Somebody PLEASE help me

Got my bottom bar back, but still cant figure how to get my home button back. This is killin me