Update on google site maps.
Well, I've been updating the file, google have been downloading it, the robot keeps visiting, and I still have about 100 pages not indexed. No change in positioning, either (except for a three day blip - down one place).
Not sure if this is related, but I created a page for an advertiser, on the basis that I would invoice him when his keywords produced a top 3 result. I updated the site maps file (nothing else). Two days later, it appeared in the top 3. I was expecting a month or two !
Peter