Go to the template tutorial here on HT and copy the block code, then turn off your WYSIWYG editor in Magento and paste the code. Save it and it should should show properly. If you edit it again and save, this problem will reoccur. Something to do with the editor.
I have disabled the editor and repasted the code a couple of times for the slider and to no avail, and then all of a sudden it works now after trying it again. I think it might have been some sloppy highlighting and pasting on my part, but anyway thanks for your reply to this it got me to do it one more time.
Peter, i have answered you yesterday here, we don’t work for you only. In order to help our customers in this, we have many tutorials regarding theme installation, follow this: http://www.hellothemes.com/uncategorized/how-to-install-theme/
Our work is to make the themes work properly, not teach how to install themes. If you still can’t do it, send an e-mail to support at hellothemes dot com , with your ftp and admin details, so we can set up the theme.-