Mac keyboard Help

Hi

I've just bought one of those new flat usb mac keyboards for my windows computer.
T.he problem is i cannot find how to get the at button for an email I can see it above the 2, but i can't get it to bloody work.
thanks in advance for any help.

Gav.:damnit1:

:crying:

It's OK now I've calmed down i took 30 milligrams of Valium:hypnotize.