Pull posts by first letter?

I’m currently dealing with a category that has a thousand posts in it. The plugin won’t pull that many.

These are essentially review posts, and I’d like to have them done by alphabet. in essence, creating a page for each letter of the alphabet and do the pull for just posts in the category that start with A. and then a separate page for B. Can this be done? I’ve gone through all the docs I can find but no luck.

http://wordpress.org/extend/plugins/display-posts-shortcode/