4) Typed in your number, which was 49
5) Got: $3.19 per month.
Not worth your time and the electricity you will burn.
Exactly ... 49MH/s isn't much. In my gaming PC i have a ATI 6950 which brings in around 330MH/s. although this was a fair bit and could make money a couple years ago, now with the ever increasing (exponentially) "Difficulty" variable, we now have 21Million+. This in practice meant that by letting my computer run for around 24hours at ~330MH/s i only made something like 60cents using a pool. considering the computer is using probably 140+Watt then its not nearly worth the effort. I'd be far better off delivering pamphlets in mailboxes after work hours!
The reason the difficulty is increasing so much lately is due to the ASIC chip based devices from the likes of Butterfly labs and KnCminer etc
Hope that helps a little Its just my 2cents from a newbie to another