Lab 3a

Hi, I have been continuously receiving a 50/70 for checkpoint 1 and I have redone the work numerous times, following the "click here to see how" link. I have been repeating steps 71 till the end, making sure to delete my previous entries. I am not sure where I am going wrong or what exactly it is that I am forgetting. The message states, "It looks like there are problems with the Lead Assignment Rule that's supposed to get built in Steps 71-101. If you want to fix this and re-grade".