The 'speed' figure is the PC to modem connection (which of course is very fast compared to BB speeds).
The 'received' figure is the amount of data INTO the PC so far for that paricular session.
The 'sent' is the data sent FROM the PC out onto the net and therefore is much lower as (with normal browsing) much more data comes in than out.
The 2,2 Mbps is the thoretical maximum speed of your service as in 2.2 Mega-bits-per-second.
I find this site good for speed tests.
The link is at the top right.
Hope that helps