Daniel, are you using this Custom Post Type Plugin - http://wordpress.org/extend/plugins/custom-field-template/screenshots/? I've used it before, and the guy who created it is Japanese, so his personal page isn't very useful as far as support for english goes.
I had some trouble with this at first. But what I think you're trying to do is add the custom fields to your new pages you've created, correct?
It's not very straightforward, but once it works it's pretty awesome.
Basically, when you set up the plugin you create these different "Custom fields," right? Well part of that should look like this:
[Custom Field Name]
type = textarea
rows = 4
cols = 40
tinyMCE = true
htmlEditor = true
Ok, so once you've created those "Custom fields" keep note of the part in brackets. You'll add this to your template pages:
<?php getCustomField('Custom Field Name'); ?>
Now when you enter the info in the pages or posts, the content should appear as you've entered it.