I had a requirement where, I needed to fuse uploadify and codeigniter together, so I started looking at these tutorials online. I found some to be very complex and gave up on them. Here’s a video how-to for using Uploadify with your CodeIgniter based website/blog.
PS: The source code contains, complete CI (CI version is stable and a little outdated now) site with uploadify working. If you have any questions, comments do let me know via the comment box down! Thanks.