Running wah gone bad....

[cosy]

So i have assembled the running wah..... and when I hook it up to my guitar with no power on the wah, the guitar signal runs through without problems.
but when I put the battery on, I get a lot of hum.... the pots rv1 and rv2 sounds like they work but there is no wah sound.
the guitar signal is not comming through....

Any idears?

schematics here...
http://members.shaw.ca/roma/
bottom of screen click "more wah"

[cosy]

That is:
http://members.shaw.ca/roma/
the projects
guitar effects
wah
bottom page click" more Wah"

[GibsonGM]

switch incorrectly hooked up? Input mistaken for output?  Provided the circuit is working.  Next step is to audio probe from the input to the output with it on.

I always verify a circuit works before I hook it up with the switch - then I know where the problem is if it doesn't work!!