category change question

Seems being on the internet has changed the things I do in my business.

How can I go about changing my category??

I now do about 90% Pig Roast catering. in 1998 it was more meat sales.

You can ue the "update listing"-link (at the top of the page where your site is listed) to propose a move of your site to a better category.

Go to the category your site is listed in at this moment.
At the top you will find a link "update listing".
Provide your url and on the next screen fill the field "Please describe the nature of your changes: (required)" with the category you think would be best for your current website. If needed also chage the description, but please keep it according to DMOZ guidelines.