Capacitors with polarity. No markings on PCB. Quick help

Hey dudes first build I've done and having a ton of fun so far and understanding it well. One issue. I'm building a hairball audio 1176 rev d. On the pcb there is a c7, c10 and c17 spot. Used for this is 3 1uF capacitors. These capacitors are marked on the side with negative for polarity f course. On the board however there are no plus or minus signs to correspond the correct capacitor. Thanks!

If you visit mnats homepage you'll find the documents you need.
From looking at the latest revision  (rev2.2) of the 1176 D board overlay it looks like
C7: positive torwards center of board
C10:  positive torwads outer edge of board
C17: positive torwards center of board
All looking from top of PCB

More questions will be answered better and quicker if you post them in the dedicated buildthread.

http://groupdiy.com/index.php?topic=20058.0

Good luck!
//Magnus