What can I use to get a COUNT of entries in column O for each date in column B?

Hi Guys,

I'm struggling with this one, but maybe I'm just going in mental circles. I'm in Excel 07, and I have tried several different formulas, including COUNTIFS, DCOUNTA, and regular IFS, but for some reason, it's all coming back wrong. Maybe I just entered them wrong...

Any ideas? My hair can't take much more pulling out...

Thanks!