Admin Panel for website

Good Day All

I am new to CI and need some assistance with an issue I am having.  I have an e-commerce website and it has an admin facility to add in products. I am having an issue with setup in CI and the routes only allows one default route. 
I have setup the default route and it works well.  I now need to setup the admin url (www.mysite.co.za/admin) and I am having difficulty in setting this up. 
Please assist.
Thanks

What version of CodeIgniter are you running?

Do you need a Route to admin or a clickable link?

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

Please paste some code samples from your project; both from the route and the controller.