[Plugin: Custom Field Template] need help few questions

Hi,
1.first of all does it work with 3.14?
2.i disable the first template and the i create a similar one at the bottom but i cannot get it to show in the “add new” page/post.
3. the input type=file when i use it with the template 0 i can see the image uploaded but when i use the <?php echo get_post_meta( $post->ID, ‘FileUpload’, true ); ?> i only see a number.

thanks

https://www.ads-software.com/extend/plugins/custom-field-template/