If $$x^{2} - 7x + 1 = 0$$, and $$0 < x < 1$$, what is the value of $$x^{2} - \frac{1}{x^{2}}$$?

A

$$21\sqrt{5}$$

B

$$-21\sqrt{5}$$

C

$$28\sqrt{5}$$

D

$$-28\sqrt{5}$$