Easyvibe help

So I made an attempt at John Hollis' Easyvibe. I etched a board for it from with the DYI layout from here:

http://www.storm-software.co.yu/diy/index.php?project=layouts

This layout is almost exactly the same as the one on GeoFex except that some really tight traces are replaced with jumpers on the top side of the board.

The only parts substitution I did was used 4 VTL5C2's for the LED/LDR pairs, and NE5532 for the opamps.

Of course the pedal doesn't work!

DC voltages seems to be ok. The two biasing LED's seem to work (they light up nicely), and I get 9 nine volts at all the opamps. The DC voltages everywhere else seem to be in line. I do seem to lose a lot of current and voltage in the third and fourth opamp outputs with the vib/chorus switch set to vib mode but I'm not sure if that is what is supposed to be happening or not. I get negligible (0.3mV) DC on the output so at least I know the output cap is doing its job!

If I give a 1k input signal at .775 volts I get output on my scope. If I hit the vib/chorus switch and switch it to vib mode, the signal goes dead. If I plug this thing into an amp I don't hear anything at all, however.

I'm at a loss at where to begin to debug it, especially since I don't have any references for what voltages should be at any given spot. The circuit is complex enough I haven't tried to break it down and do the math for each part of the circuit yet, so I was hoping someone who might have built this already might have run into similar problems and have some pointers on what they fixed.

I'm also not sure now if the VTL5C2 is OK to use. I had a bunch sitting around so I decided to use them. The datasheet (http://optoelectronics.perkinelmer.com/content/Datasheets/DTS_vtl5c1c2.pdf) made it look like a good fit. The orientation of the LED's on the DIY layout is not marked but it looks pretty clear to me that the + side is to the left (even on the circuit on Geofex). Since the VTL5C2 is a solid part, I can't see if the LED's are lighting inside or not. I do get a few millivolts across them with the circuit running though.

If anyone has any ideas for me I would be grateful! I can provide more details and pictures if it would be helpful. I would really love to get this thing going. It has such a cool sound.

As an update, I DO get a sound when the vib/chorus switch is set to chorus, but its just the clean guitar signal as if it isn't being affected at all (I was working on it late last night and I must have dislodged the input jack when debugging it). When I switch it to vib mode I get no sound at all. I'm starting to think the VTL5C2 isn't going to work or is oriented wrong.

In case anyone was following this, I got it to work perfectly. It turns out the the led's were mounted backwards. Which also means the layout I used needed to be redesigned for the LED orientation for the VTL5C2's.