helpnow - 2:10 pm on Jun 24, 2010 (gmt 0)
"Hi helpnow, when I search for "ourdomain.com" in google, there are loads of results and our homepage is #1."
That is a terrific sign!
"If I search for unique text on the homepage, it does not show at all. "
Sorry, this is a point I want to hammer down: Are there ANY results from any pages for that search? If not, Are you sure you are searching the right phrase? If you are positive, is this text that has changed recently? To be sure, go back to the "ourdomain.com" search, and grab a chunk of text out of the cache of the page, so we can be sure you are searching text that google currently knows about from your home page. If there are other results, how many, because what we want is a phrase UNIQUE to your home page, something not found anywhere else...
I am wondering if the content on your home page is duplicated elsewhere, and thus, if your home page as a straight result has been filtered out, although of course it shows when you do a "ourdomain.com" search.