How do I customize the sign up page on the Membership plugin?

So - I'm trying to get Membership set up on my site, and I'm running into a lot of problems customizing the pages. I've read the manual and watched the videos, but maybe I'm missing something dead obvious.

For example - on the Sign-Up page, I've got the form customized - the part that shows up in the box. But I can't figure out how to get rid of the text that comes before it. I only have one subscription level right now so it sounds dumb for me to say. . .

"Select a Subscription

We have the following subscriptions available for our site. To join, simply click on the Sign Up button and then complete the registration details."

Where can I edit the text that's being dropped in with the shortcode?

Thanks so much!