orion94, Share difficulty at the pool is 0.235 as I write (see the "share difficulty" on http://treasurequarry.com:9844/static/ ) . With the way p2pool works, you need to find a share before you start to get a run of payments for that share.   Payments for that share will then start when p2pool finds the next block and will continue until the share has run out, at which point payments for that share will stop .  You need to find another share before each run of payments starts.

At an average of 12.5kh/s and current pool share difficulty of 0.235, it will take on average 0.93 days-worth of continuous hashing to find a 0.235 difficulty share accrording to the summary at http://www.coinwarz.com/calculators/infinitecoin-mining-calculator/?h=12.50&p=500.00&pc=0.10&pf=0.00&d=0.23500000&r=16384.00000000&er=0.00000001&hc=0.00

If you've been mining from 9am to 12am ( 3hours per day) that's one eighth of a day that you're hashing, so you instead of taking 0.93 days, you'd need to  multipy that by 8, so it would likely take you 7.44 days of hashing 3 hours a days at 12.5kh/s to find each share.  

I see from the block explorer that you 've receive 2 more runs of payments since yesterday http://exploretheblocks.com:2750/address/i3gMKjQ4AxTWsbtWd3VXSJQHt6rwVvxbBB

Also from the block explorer I see  that you've received 24537.92097002 Infinitecoins since 8 December 2013 (ie since 7 days ago).  If you've been mining 3 hours a day for 7 days that's 21 hours.  I would estimate that the global infinitecoin network difficulty during the last week may have been hovering around 1 . Using difficulty 1 and your hashrate of 12.5 kh/s in the Infinitecoin calculator we see from the bottom part of the results page how many coins you may have expected on average.... http://www.coinwarz.com/calculators/infinitecoin-mining-calculator/?h=12.50&p=500.00&pc=0.10&pf=0.00&d=1&r=16384.00000000&er=0.00000001&hc=0.00    shows 171.66 coins per hour.  Multiply this by 21 hours of hashing gives an estimate of 3604.86 coins expected.    Seeing you've received 24537.92097002 coins from the pool , if looks like you're doing very well indeed.



limburatorul, please see the first paragraph of my reply above to orion94.   With the way that p2pool works, payments do not necessarily keep being made continuously as you need to find a share of adequate difficulty (current pool difficulty = 0.235) to start getting each run of payments.  If you're not already doing so, it's worth adding an appropriate +number for your pseudoshare difficulty for each computer (as detailed on the first post in this thread) .  This may help your graphs show better.