Hello there Nicole...I grew up just down the road from Greensburg!
Anyway...to your question.
Have you thought about approaching the sellers with a Lease Purchase scenerio? A Lease-to-Own deal could be a great way to move into the house now, while giving yourself time to work on your credit and to save up for a downpayment. Being that you said the house has been on the market for a while, the sellers may entertain this type of deal especially if they've had no offers. It could take the financial/mental burden off them by creating a possible sale where otherwise they could have their property on the market for several months more.
If the deal is structured properly, you could even receive Rent Credits toward the purchase price at the time you're ready to buy. The more flexible and creative you can be when structuring a real estate transaction, the more win ~ win situations can be created.
There are only 2 Rules when putting together a Lease-to-Own deal:
1). There are no Rules.....
2) See Rule #1
I HIGHLY recommend that if you put something like this together, you find someone VERY familiar with Creative Real Estate Deals. This includes an Educated Investor (such as myself or one of my fellow associates in PA), a TRULY KNOWLEDGABLE Realtor (if you want to go that route), and an attorney/title company who TRULY understand Lease Purchases.
If you ever want to learn about Lease Purchases or any other solutions/posibilities, don't hesitate to shoot me an email or give me a call(no obligation on your part, whatsoever). I'm here to help BOTH buyers and sellers in putting deals together while hopefully saving them from paying the commissions and overcoming current day paradigms (or the inability or refusal to see beyond the current models of thinking) generally associated with Real Estate Agents.
I actually dropped my Real Estate License so that I could assist more families and individuals in putting deals together. It was wayyyyy to difficult to get creative deals done while being a Realtor because they (most Brokers) want you to do things the "Traditional Way". Either that, or they don't understand that there are other solutions to sell or buy a house beyond the typical "retail deals" that involve MLS listings.
Hopefully this gives you a few more options.