I had a look, not overly impressed with all the stats.

Is there any way of seeing for one of your sales what keywords were used to find it? (like at DT)

The other thing I thought was strange that considering the size of the portfolio 13 million how vague/general some of the search terms were.

The way to use it might be to see what people are looking for, rather than specifically what people have bought. You can click on the various columns and see what seraches were used for sold photos. It isn't like MS where the same image and images like it are necessarily going to sell again. Last month Meditation, Northern Ireland and Child Yoga were the top three. In August the same three had no sales. If you are looking at what sells to find ideas, I don't think past sales on Alamy is a good indicator. You can see what type of images sell, and go in your own direction.

As for keywords, for people who like to harvest, copy, or research those, you can only see the Comprehensive (third box, less important) keywords on other peoples photos. We can't see what other people have entered on their photos.

Even with the most sales being RM  70% they do sell a good percentage of RF. Take a look at the average prices paid for a photo.

The searches are entered by users/buyers so you'll have to ask them why they do such vague searches? 

Rough numbers: 1.3 million new images a quarter. Average sale price per photo, RM $150, RF $225.

Here's an interesting report from Alamy that shows sales, uploads and types. They have been growing.

http://www.alamy.com/contributors/statements/default.asp