I've been mining on one of your pools yesterday:
http://swmining.mine.nu/sbc/Something is not right as I did not get credit one single coin eventhough I did find quite some blocks:
107,794 Confirmed! EnJoyThis 2013-08-03 05:30:05 PM 0.17389608 851
107,776 Confirmed! EnJoyThis 2013-08-03 05:08:02 PM 0.17389608 594
107,736 Confirmed! EnJoyThis 2013-08-03 04:31:03 PM 0.17389608 746
107,720 Confirmed! EnJoyThis 2013-08-03 04:12:01 PM 0.25287370 1,097
107,690 Confirmed! EnJoyThis 2013-08-03 03:41:06 PM 0.25287370 89
107,687 Confirmed! EnJoyThis 2013-08-03 03:37:01 PM 0.25287370 155
107,684 Confirmed! EnJoyThis 2013-08-03 03:32:02 PM 0.25287370 587
107,665 Confirmed! EnJoyThis 2013-08-03 03:15:05 PM 0.25287370 606
107,656 Confirmed! EnJoyThis 2013-08-03 03:09:10 PM 0.25287370 261
107,629 Confirmed! EnJoyThis 2013-08-03 02:58:03 PM 0.10648756 202
I know how the PPLNS system works but at your pool it seems it is not working at all...
I've also sent you a support ticket but though I would also post this on the forums, perhaps more people are having the same problem at your pool.
Please look into it and correct is. When it's corrected a PM is greatly appreciated.
Thanks
-EnJoyThis