It only showed 2 hours because that's when the stats began; it will show longer over time (I think.) The difficulty is notated wrong - that's meant to be pool % not T, I'd already informed the author and it will be fixed.
I tried to help you, but when it comes to costs, there's no consideration, even though you've earned so much from fees. For everyone to know, our misunderstanding started when I asked Kolivas about some steps to code an SPLNS pool for myself, and he told me ...I'm dreaming if I think he'll code anything it for me. Then i asked myself why i am serving this guy ? So this is why solostats in not what was before. Anyway, here we are ...