The last update the tweetmeme button ran away, then the folks at tweet meme made a new version 2.1 that was to fix the install error but seems to have not worked either because even with 2.1 the button is still hiding.
I don't know much but the code is calling for div but no css is being loaded to tell it what goes there.
<div class="tweetmeme_button" style="float: right; margin-left: 10px;"><a class="tm_button" rel="&source=newsweird&style=normal&service_api=Local%2C+i.e.+http%3A%2F%2Fwww.newsweird.com%2F%3Fp%3D1234&space=1&hashtags=interesting,odd,Unusual&b=2" href="http://www.newsweird.com/2011010410/odd-and-bazarre/japanese-scientists-engaged-training-smart-bacteria-3457"></a></div>
<div id="attachment_3458" class="wp-caption alignleft" style="width: 310px"><a rel="attachment wp-att-3458" href="http://www.newsweird.com/?attachment_id=3458"><img class="size-large wp-image-3458" title="smart-bacteria-darmflora-unusual-science" src="http://www.newsweird.com/wp-content/uploads/2011/01/smart-bacteria-darmflora-unusual-science-300x195.png" alt="Smart bacteria" width="300" height="195" />
I will leave it active for a while if anyone needs to look at it in the source code to help find a solution. You wont find the code on the main page, you will have to look at a post page and view the source to see the tweet meme code. Weird News
Help help help we really liked the button.