I tried whatever you guys suggest here but was not able to get nokia camera
i was still getting the same error code : 8000ffff again and again ... i thought they removed the app from market place. than i tried something stupid ( some of you guys will surely think it was stupid ) i changed the region to uk and kept the proxy and port same (117.135.139.179 , 8888). now i the error msg got changed to error: 805a0258
bingo!!! i knew what to do now. just disable the proxy (or shut the wifi off and download it over cellular ) and retry downloading again.
finally i got the nokia camera ( pro cam whatever it is)
thanks man
i register here just to post this comment LOL!