This extension allows you to see all your Categories in Alphabetical order similar to Manufacturers listing.

EASY INSTALLATION:

Simply extract the files in the Zip archive into your web directory where Opencart is installed.
Allow all files to copy in appropriate folders.

Its a simple extension but a must have.

Let me know in case of any issues.

Demo: http://classicus.in/indiandesignerwear/index.php?route=product/listcategories

Email me at : ateetagrawal@gmail.com