UPDATE: It's been six months and our contract with our original real estate agent expired today. Just as a previous poster predicted, the "spiteful" real estate agent sent us another e-mail last night.
She said she can see that our house hasn't sold and was wondering if "you're ready to put the power of a full service brokerage behind the sale of your home." She went on to say that she will have over $5,000,000 in sales by the end of the year, and that the agent we listed with has $700,000 total in sales.
Now, as my husband says, numbers talk, and he is thinking we might want to reconsider listing with her. I hate to eat my words, but he might be right.
We have had no luck with the original agent and agency. On the other hand, I know it is a bad time to have a house up for sale.
So, my husband sent an e-mail to the agent and told her we are considering listing with another agency and asked her a few questions. He asked how many houses she has sold THIS year, especially those within the price range of our house, and how many houses she has sold in our community. He also mentioned that she DID have the opportunity to sell the house (through multiple listings and such), but didn't.
We're just trying to figure out the best way to go from here. Renew our contract, list with this woman, or list with a different agency.

At this point, we just want someone who can sell our house!!!!