Tonepad's DistoUno DS1 help....

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help pls......... i built a DS1 based on Tonepad's DistoUno. but its not working properly. there's sound but its just a clean sound, no distortion. btw im testing first without a stompswitch (just the effect). the sound is louder though compared to guitar directly connected to the amp. secondly, the vol/level pot and tone pot are not changing sound even though im turning them back and forth. supposedly when vol/level pot is set to min, there should be no sound but mine still has. same as with the tone pot.
also, when the gain pot is adjusted, i can hear a very very slight change but also just sound as if there wasnt any gain at all, and when set in max/full, loud humming sound occur so i have to turn it back just a little bit and hum is gone, back to just almost clean sound.
btw, i used the TL072 version. i even replaced it with a new one, thinking it was the problem, but still got the same thing.
what im doubting are the capacitors im using. apparently, tonepad doesnt list the kind of caps to use whether ceramic, metal film/mylar, or electrolytic. so when i bought the parts at a local shop, they just assume and gave me what they currently have.
can you please see the image below and help me identify the capacitors made of??

http://imageshack.us/photo/my-images/18/ds1tonepad.jpg

please also include the capacitors parts list of TA7136P just in case il be using it in the future.
i was able to spot those electrolytic capacitors because i based them in the diagrams since they have polarities. they should be 16v right?
but 1 quick question though, 1 electrolytic  i used is 50v rating, is it OK to use it instead of 16v??
also, when using the TL072 parts option, should i change the potentiometers value to a higher ones??? or it doesnt matter, that i should still use what was listed which are 100K linear for both vol/level and gain; and 25k linear for tone??

help please....im so desperate now...its been almost a week and i still cant figure it out....     TIA!!!

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Bump!! Paging 5thumbs......or anyone....

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thanks anyways guys, i was able to fix the problem already. some of my pcb traces are cut off and some bad soldering. i just desoldered everything, then retraced, then fix up, then soldered everything up. and now its kicking!!! ty...
just need to tweak it a bit as 5thumbs suggested to replace my current C1, C4 and C5 based on TA7136P parts list to make it sound more pre-1994.
case closed! ty all...