Making Command, Option and Control work with microsoft sculpt keyboard? I'm trying to set up the command keys on my 2014 macbook pro (10.10.1 Yosemite) with my new wireless microsoft sculpt keyboard:



I went into my system prefs and started trying to make it so I could map the ctrl button to macs command button with no luck (note I set it back to default after):



Now I'm using Karabiner and trying to map the keys ctrl_l to command_l, but it still doesn't seem to be working.  

edit

The Key mappings are working on the macs keyboard, but not my sculpt keyboard.

edit 2

I mapped the return key to command and now when I hit enter on my sculpt it acts as if it is the command button. I just now need to figure out what the ctrl and alt button are mapped to by default on the sculpt. Any ideas?

edit 3

In the event viewer in the Karabiner program when I push down the ALT and CTRL buttons they don't get picked up. But when I push down the windows button it is registered already as the command_l and the button between the right CTRL and ALT registers as as PC_application. Now I need to figure out if I can get the CTRL and ALT buttons working or how to just register the pc_app button as options and call it a day.
In system preferences hit restore to default then ok. Download Karabiner

and then in Karabiner do this: