[Andy]

In post #1 there's a typo error in the code example. Here's the correct way to add this template change. Just add "{vb:raw checked.delete}" as shown below:

default
<input type="checkbox" name="keepattachments" value="1" id="cb_keepattachments" tabindex="1" /> {vb:rawphrase keep_attachments}  

modified
<input type="checkbox" name="keepattachments" value="1" id="cb_keepattachments" {vb:raw checked.delete} tabindex="1" /> {vb:rawphrase keep_attachments}