Not that I can see. The problem is there is a connection from D13 to the motor driver chip, and there is a connection from D13 to the LCD. One way or another, you have to cut one of those connections else they will interfere with each other (same for D11).
I even looked on Sparkfun's motor driver board layout to see if there was an easy way you could solder a wire in for D13 and there isn't (unless you're fairly skilled at soldering). D11 is better, it goes through a via so you could stick a (thin) wire into the via and then into a pin header. But D13 is going to be tough to rewire (again, unless you're pretty good at soldering in which case it is doable).
The Gadget Shield
: accelerometer, RGB LED, IR transmit/receive, speaker, microphone, light sensor, potentiometer, pushbuttons