Adding ShareThis Code to Post Footer

Hi

I'm trying to add ShareThis javascript code to my post's footer on the single pages only.

I've tried inputing it into the "FOOTER: Single Post Pages" box on the "Post Page and Info Items" screen.

I had it working once, but for some reason it doesn't work anymore. The script just doesn't load.

The Wordpress plugin works, but I don't like having the button on the main page.

Can anyone help?

Here's the code I'm trying to insert:
<script type="text/javascript" src="http://w.sharethis.com/button/sharethis.js#publisher=b8cc72b6-e7ea-43c5-9bcd-8fb83264a494&amp;type=website&amp;buttonText=Shari ng%20is%20Good!&amp;style=rotate&amp;post_services =facebook%2Cdigg%2Cmyspace%2Ctwitter%2Cybuzz%2Cdel icious%2Cstumbleupon%2Creddit%2Ctechnorati%2Cmixx% 2Cblogger%2Cwordpress%2Ctypepad%2Cgoogle_bmarks%2C windows_live%2Cfark%2Cbus_exchange%2Cpropeller%2Cn ewsvine%2Clinkedin"></script>.

Thank you!