I would imagine it is possible, just drag and drop the code from the Postbit_Legacy template. Pretty sure it's a <vb:if condition> code. I'll try find this for you.
--------------- Added [DATE]1377940031[/DATE] at [TIME]1377940031[/TIME] ---------------
Found it,
Code:
<vb:if condition="$post['field5']">Thank you for your support. Your Server ID is {vb:raw post.field5}</vb:if>