Fuzz Factory Clone (Capacitor orientation)

[Saudeb]

Had a quick question about which way to orient the caps on this vero:
http://revolutiondeux.blogspot.com/2010/06/zvex-fuzz-factory.html

It doesn't say which side is positive/neg, which leads me to assume there is no positive/neg... But my caps I bought have polarity.
Did I buy the wrong caps? or does this not matter?

Thanks to anyone who reads/answers.

-Brian

[Scruffie]

One side is very slightly shaded, there's your negative.

[Saudeb]

Thanks so much! I didnt even notice the shading...

-Brian