CafeAstrology Scores?

Hey Guys (and Gals)

I went to cafeastrology.com and used the "compatability for lovers" because I was curious to how the system works.
Found here: http://astro.cafeastrology.com/cgi-bin/astro/comp2f

The final score value is found after you put in birth information and gives you aspects between the two people. Your score is found underneath the aspects, as three numbers. One represents positives, then the negatives, and then the number when you subtract the negative aspects from the positive aspects. (unless I'm wrong, someone correct me lol)

What does a higher score mean? I did three testing groups
one score was 1417
another was 555
another was -18

So what exactly does this compatibilty thing do or reveal between the two peoples?