Directory and Custompress

The website I am working on is a basic blog on the surface with the simple template from wpmu. Anyway, I have been asked to create a directory for this site as well which will operate as a separate section of the site. Just had to install custompress to fix an error with the directory listing and I am now intrigued by it's capabilities. Specifically the ability to add custom fields. In creating the listings, so far, I have to code out the html to separate sections for hours, telephone number, website, etc.
What I would like to do is simply create those fields in custompress and then just fill them in for each listing. If I add a field in custompress will that field be present in regular blog posts? Or is there a way I can designate that only directory listings contain those added fields? Thanks