After taking a while to index the post pages on my blog, google suddenly went mad and started indexing everything in site. At first I thought good, the googlebot is rushing about my pages, however now not so good I think. It seems that google is having problems on which page or pages to show in SERPs. For example yesterday morning the main page was getting indexed to the search term I SEO'd for, last night that went and a category page was listed for the same search, today the TOS page is presented!
I am using the 2011 theme and have not changed any of the basic directories WP creates, except to add some plugins. I think I need a robots.txt file but I don't really know what to put in it as I don't know where WP stores stuff.
Any help be really appreciated.