Luisie?, i hope that is not intended to make my name sounds as the female variation.
the symbol is $ (only one line accross de S).
Ammounts are written this way: $999,999.00 (notice that there's a period to separate integer units from fractional ones).
I usually write currencies on international boards in this way: MX$999.00, US$999.00, UK$999.00 (sorry i don't have the pound symbol in my keyboard). I don't know if that's the correct way of writing ammounts, but it sure includes the currency i'm talking about.
yeah, stupid american keyboard settings not having a £ sign. my copy of quark is us and i have to switch my keyboard setting to get it to work, usually i forget to change it back so am stuck with quid, bob, pounds, lucre etc.