There's 4 ways you can look at a connection plug: from the back or from the front and from the female or male perspective (what kind of wiring did you say you did?

)
Usually DB9 pins are numbered with tiny letters in the plastic (you might need to magnify), either in the front, or in the back if you can open the connector. Or alternatively go
here where all the views seem to be into the connector from the front. When in doubt
follow the numbers.
("
Inn maee contree, wee 'ave dis ting, iss cauld 'Google'....")
UPDATE: If you refer to the connection page I just linked to in this message, the diagram from the manual is in fact a null modem cable. So Mick is right - if that is the right cable.