ADSENSE DELUX STOPPED TO WORK

I wanted to put adsense unit into the post to the right, i added this:
<div style=”display:block;float:left;padding:5px;”>

<script type=”text/javascript”><!–
google_ad_client = “pub-555555″;
google_ad_width = 468;
google_ad_height = 60;
…</script>

</div>

The ad here is an example.
It worked well but I wanted it to the right side inside the post and I changed the word “left” to “right” in the first line command and since then can not upload the plugin itself.
I deleted it and upload again into directory but nothing changed, can not making work again.
Please any one help!
Thanks in advance!