How is the board connected to this chip?
The tracks may be running underneath the chip, they may be obscured by soldermask, or they may be running on an inner layer of a multi-layer PCB.

Use a multimeter with a continuity checker to "buzz out" the connections. Test each leg of the chip against each pin on the board and draw out a map of what connects where.

Then, reference the datasheet and label the pins on your board.

For an Atmel dataflash chip, the legs are almost certainly numbered like this:

 | | | |
|4 3 2 1|
|      .|     
|       |
|5 6 7 8|
 | | | |


Here are the pictures from the AT45DB041D datasheet showing the pin arrangement and marker dot: