How can I add a "Link" to the bottom of all Threads?

[vilhiem]

Here's what I want to do ... is add an "Ad" link to the bottom of all new threads created.

Thing is ... I want this link to actually be part of the post itself (not just a reference footer).
In other words, I want this to show up in the database table, "Posts" in the field, "PageText".

So, I'm thinking this is something to add to the make new record query ... but got no clue as to where, or how, to do it.

Thanks Much !!!!