Problem Embedding Custom Template Within Template

Hello,

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Here's the line added to "files_user.conf":

HTM_LATEST_NEWS=user/latest_news.html

Then I added the following to "users/show_domain.html"

|HTM_LATEST_NEWS|
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What I got in return was "File Not Found" within my template. Also going to: http://mydomain.com:2222/HTM_LATEST_NEWS generates the "File Not Found" error.

I am using the latest version of DirectAdmin, and am not sure what I'm doing wrong.

Please help!!!