[Plugin: WordPress Simple Paypal Shopping Cart] Not Properly Escaping Text in Options

In the options page, I can enter text for things like:
Text/Image to Show When Cart Empty

If I enter html in here, such as:
Your cart is empty. Check out the [Products Page] to fill it up!

The link for Products Page breaks, incorrect stuff is displayed on output, and even the form in the admin section breaks.
It would be very helpful to be allowed to put links in here.

Thanks!

http://wordpress.org/extend/plugins/wordpress-simple-paypal-shopping-cart/