Yes, a lot of graphics cards include a molex-to-PCI-E power adapter, but I prefer to use PSUs that include that connector directly. Less things to screw up, you know?
I suppose it's fair that this PSU doesn't include one, it's a very entry-level PSU. I was just commenting, because I recently picked up a Vostro 200 on CL, that had a 350W Lite-On PSU inside, and it DID have a 6-pin PCI-E. I was pleasantly suprised. Unfortunately, the fan on that PSU was starting to go, so I just replaced it with a 500W that I had lying around.