Thanks for your appreciation. Sorry for the delaying reply.
It seems that you are confused about several basic concepts in WordPress, such as menu, page, post, and categories. You need to first add a new page and then add it to the menu. If you want a page with unlimited categories, go to Dashboard -> Posts -> Categories, and add a new name. Every time you are going to publish a new post, remember to select the categories from the right side Categories boxes. If you want to show the categories list on the blog page, you have to add the Categories widget to the sidebar. For more information about menu management and how to create a static page, you can visit our blog for more tutorials. Hope you could find some useful information there.
As for your suggestion about the widgetized footer, it sounds quite reasonable. We will definitely take it into consideration while dealing with the theme upgrade.
I'm not sure whether I've solved your problems. Anyway, good luck and enjoy Zippy.