Get rid of the line break after the image code and move the text below which starts
This weekend (4th-5th February) saw...
to start right at the end of the image code. In other words, you want it to look like this:
<img style="float:right;border:0 solid #aaa;margin:0 10px 10px;padding:5px;" src="http://wakefieldsocialistparty.files.wordpress.com/2012/01/regionalconffeb2012.jpg?w=150" alt="Photo of Attendee's at the February 2012 Regional Socialist Party Conference" title="Attendee's at the February 2012 Regional Conference" width="150" height="112" class="aligncenter size-thumbnail wp-image-227" />This weekend (4th-5th February) saw an enthusiastic gathering of comrades from across the region for this years first Regional Conference. Both day's featured an introductory lead in by guest speakers from outside the region until lunch, with multiple commissions to follow before a finally summarising speech and a round of comments and feedback from the floor. The first days focus was on political topics, with the second day having a more practical theme. A collection for the fighting fund also raised in excess of £350!. Further details are provided on our blog post for the event, on our News page.