I want to add certain images from albums in my ZenPhoto gallery to various Wordpress posts using their image from a url feature. When I get the image location url from an image on ZenPhoto, it gives me the cached image url. I was wondering if the cache url will change if the image is ever recached. If so they how can I link directly to the image (it currently does not allow me to do that and keep protected view enabled). Or if the url will never change, then I can just used the cached url for the purposes of image linking in Wordpress.
Thanks!

Unless you change the setting of the image in question (like cropping values or size) or rename the file, the file name of the cached version will stay the same.

For adding images to WP post try this if you don't use already:
http://www.zenphoto.org/news/zenphotopress

Fantastic. Thank you for your help.
And I did not use it, but I just downloaded and activated it, looks like it will make it much easier .