Is my memory configured properly?

[radiohead1075]

As the thread title states:

http://uploader.ws/upload/201007/Picture_1.jpg

If not configured properly, how should the modules be arranged?

[lannister80]

http://att.macrumors.com/attachment.php?attachmentid=97452&d=1200176588

Not quite. You want configuration 8C on this chart.