Did you trigger the Maneater Mildred invasion? It's right in front of the first bonfire in blight town while your human. You can summon her for help with Quelaag.
After you ring both bells of awakening, go to the gate in front of the undead parish. From the bonfire in the blacksmiths building, head straight out. You'll find Siegmeyer the onion knight there. So remember that.
Yeah, sometimes I wonder if online shopping is worth saving the extra dollars due to the extended wait that usually comes with it. Either way, I'll still have the game and will be more than happy to play.