Central usage of CI

[eluser]Derek Allard[/eluser]
You'll need some type of url re-writing, probably htaccess. It isn't a CI question so much as a server config question. I don't know enough about htaccess to guide you much beyond here, but I'd advise you to chat with your host about this.

For the actual application part, it sounds like a standard db task that CI could handle, but without more details its hard to be sure.

Good luck, and welcome to CodeIgniter.