Ok, I finally got it. I sprayed some Liquid wrench on it, and about ten minutes, tried it. I don't think I needed the liquid wrench, though. Like Flybert said, I needed to use the strong hand. I was scared of twisting the head off, like I did on arcade machine that I was working on. :rolleyes
I just finished everything, but I made quite a mess.

I think my oil drain tub had a hole in it, because I'm sure it was pouring right on to it, and I had removed the plug, so I know that wasn't the problem. When I turned the tub over, some oil seemed to be running from the bottom. It's really dark now, so I can't tell. Damn, I had to use up all my cotton diapers to get that mess up. They were dirty anyway, though.
Flybert, I used a ratchet and 14mm socket. Normally, my dad would help me, but I'm about 16 hours away at college. He advised me to get the liquid wrench, though.
Oh yeah, thanks for the help, everyone!:)