www.sidereel.com has links for programmes in all 9 series. Do a search for CSI there, select the one you want and for each programme in the series click on the search for results entry.
Just a few other things. Links to megavideo are good, but will limit you to 72 mins on any day without paying (but you can go back an hour or so later and watch more !). If you use a link to ninjavideo you wll need Divx installed on your PC and will need to run their helper app to view the programme. Links to veoh are usually good, but will give you a pop-up (just close it). Links to hulu won't work in the UK, nor will links to any of the US TV stations.
Oh yes, and remember that all of the links can be slow at times.