Adobe premiere pro 7.0



Hi. I have Premiere Pro 7.0 for editing movies. When I want to pick my transitions, I only see the name of the transitions. I’d like to see an example of what they are before I put them into my video but I can’t find a way. I know how to do it using Adobe Premiere 6.0 but what I have is Premiere Pro 7.0.
Thanks in advance.