Log into the demo account
Log into the live demo account and see if Undebt.it will work for you. Feel free to add debt accounts, make changes & payments and check out the debt snowball table. Be sure to see how changing the monthly budget amount affects the debt free date. The data gets refreshed daily, so make as many changes as you want.
It's a shared demo account, so feel free to poke at everything — nothing you do in there needs undoing.
If you try Undebt.it and like it, go ahead and create an account and get started. Show your support with a "like" on Facebook or a mention/follow on twitter - or even better, a small donation.