UPDATE: Ignore below. It works for the styles keyboard but not for the thumb keyboard
AH HA!! My first problem was i put keysum instead of keysym. After I did that when I pushed the button all it would do is tab over 5 spaces instead of auto complete. After digging around with xmodmap I found that the actual string is
keysym F7 = Tab ISO_Left_Tab
Now I have tab completion on the terminal!!!! Not a nice as hacking the keyboard but this def. makes things easier.