Adding permalink to an excerpt in template

Hi, I am using a theme where we pull in testimonials via ‘groups’. It’s much like a blog, so each testimonial is a post and is categorised into one or more groups. You can see the ‘index’ page for the testimonials here: http://intelligenthorsecare.co.uk/testimonials/. In the left hand column you can click through to see testimonials relevant to a specific group. I’m trying to link the shortened testimonials to their full version within the group, or just the group page. For example a shortened testimonial about Coolheat Rugs should link to this page: http://intelligenthorsecare.co.uk/group/coolheat-rugs/. At the moment, my template for that page calls the shortened testimonial in this way

<blockquote>
					<p><?php shorten(400, '', ''); ?></p>
					<cite> <?php the_title(); ?></cite>
				</blockquote>

I’ve tried several versions of permalinks within the template, but none of them work (I’m not very proficient at php)! Does anyone have any suggestions of what I may be able to try?
Many thanks
Vicky