Dell Inspiron 600M Keyboard Replaced, now touchpad doesn't work

need to pick up the keyboard and make sure the ribbon cable to the mother board is fully seated. if it is. then the touchpad need to come out and clean it very carefully. the sugar and any sticky substances need to be clean off the machine, around the touchpad.
I hope the drink did not damage the touchpad.(it is heat senstive)
if it still don'e work aft reinstalled it. you need to call dell to get a replacement.