The front and rear end of the screw driver are easy assertained, but vary depending on the direction one is veiwing the tool. The rear (handle) of the screwdriver (usually--remember, there are always exceptions) is the thicker end. It is comminly coated or incased in a hard plastic. This would be the end that goes into the palm of ones hand.
The front (tip) is usually metal and comes w/ a varity of designs. They range from -, + to even *. The more commin are that of the + and - design. These tips are made to be inserted into a screw, (lookes like a nail, but has spirals going up it and the head is more thicker). The top of the screw should be matched with a screwdriver whos tip resembles the opposite plane. (Think of the screwdriver as the 'male' and the screw as the 'female'. The male goes into the female--again, there is exceptions).
With the screwdriver's tip mated w/ the screw, one should proceed with turning the handle of the screwdriver in a counter-clockwise direction to remove the screw. To insert the screw, do the same as above except turn the handel in a clockwise direction.
Good Luck!
As far as the link...Sorry, haven't seen that either.
--Why '77', You get "Eight" more!!!--