In regards to how this works, you seem to be doing just fine.
I hope Tammy gets a home.
By the way, if you are new here, one way to help people find the villager you are offering is to click on 'Search Forum' to the top-right of the topic listing page (
http://www.belltreeforums.com/forumdisplay.php?85-Villager-Trading-Plaza), click 'Advanced Search,' enter the villager you are giving away under 'Keywords,' then select any other criteria you want before clicking 'Search Now' (in regards to criteria, I like to select 'A week ago' under the drop-down menu to the right of 'Find posts:' and to click 'Posts' to the right of 'Show Results as:'
That way you can easily find people who are looking for that villager and leave a message in their profile directing them to your topic.
Of course you don't need to go through all that; it's just something I like to do to improve the probability that my topic is seen by the right people.