I want to use google custom search on my site - it's indexed anyway, and the search engine Google provides saves me a lot of pain re-implementing the things they alredy have.
Only problem I have is - I need the results sorted my way: I got number of articles on my site, each having a 'rank'. And those that match the search query I want to show in order - sorted by their rank.
Is it possible to do that, using google's custom search?
My understanding is that the answer to your question is no. Custom Search is really just a skinnable site:yourdomain.com that you can embed on your pages.